RTR . . . maybe fuRTRader? beeRTRay?
“crossdress” and “crossdresser” are both hyphenated in my Oxford dictionary. “furtrader” and “beertray” are good too, but no dice. Sorry, iampunha. 
I gave bibliophage the yay for “cartridge”, but the word I had in mind was “chartreuse”. “cartridge” works, though, so I took it. Maybe it would have been funner if I’d used the “RTRE” sequence instead, huh?
One more crack at the SDR, and then I’ll spill it.
Try:
RNST
ERME
OKKE
Point to AudreyK for eggplant. Updated second-round standings so far:
iampunha 3
lurkernomore 3
scratch1300 3
AudreyK 2
ren 1
Mind gamer 1
Eggs à la Ted 1
Fretful Porpentine 1
And here are the last 5 in the second round, together with our old friend HIEP.
- HIEP
- OGGA
- OTJ
18, TIBO - UDSM
- YEG
turnstile, permeate, bookkeeper
- tobOGGAn
bibliophage-- Damn!
Yays all around. My words: cornstarch, watermelon (ferment works too), and bookkeeper.
- antibody
- eyeglasses
Two points for Mind gamer and one for AudreyK. That makes a five-way tie for first place in the second round.
There remains
- HIEP
- OTJ
- UDSM
- OTJ
bootjack
Hey, a swedish word
- UDSM
ombudsman.
Two more points to Eggs à la Ted. Unbelievable. Am I doing the math wrong, or do we have a six-way tie?
iampunha 3
lurkernomore 3
scratch1300 3
AudreyK 3
Mind gamer 3
Eggs à la Ted 3
Fretful Porpentine 1
ren 1
So we’re back to just HIEP.
ILFI-sailfish or tailfin. Thank God. The inside of my skull has finally stopped itching. Now I see that Mind gamer got tailfin hours ago. How did I miss that?
It’s 2am, and I’m up thinking about HIEP. My brain is not letting me sleep.
Darn it, I keep thinking about a Vietnamese classmate named Hiep!
I had KULE and RSAP.
bibliophage got the first – uKULEle. Most people seem to suppose it’s spelled ukelele, but it’s not. Yeah, I thought, If Ike sees it, no contest.
That leaves RSAP, which, if no one gets, I’ll post the answer to, oh, about three or four o’clock this afternoon (Eastern time).
Hint: it’s not usually pronounced the way it’s spelled.
Got it! It’s archiepiscopal.
But… I found it when I was looking up archiepelago :o. So I win because I can’t spell.
Doesn’t seem fair, does it? 
I’ve gone back through the thread to see if there’s any words hanging around waiting to be answered. I’ve assumed that if an answer hasn’t been rejected, it’s probably okay. Looks like it’s gone well so far, there’s just a few out there :
I apologize if I miss any answers –
AudreyK has : SDR
scratch1300 has : RSAP (it’s not Versaphone, is it?)
ren has : XACH
iampunha has : WFL, which I’m claiming for snoWFLake.
If Eggs a la Ted is confirmed correct, then bibliophage’s are all solved (I’m just glad it wasn’t smoochiepie)
I’ll post the words I was thinking of for UTM, URYT, and HROD in my next post.
panama jack
UTMost. Easy one.
Typo in my last post – I meant CTM, not UTM. But I’ll put up UTM as one to solve.
Anyway, the ones I was thinking of, which seem to me to be the most recognizable terms :
HROD - answers were pushrod, ashrod, chroda. I was thinking of hermaphrodite.
CTM - answers were ejectment (which was one that I knew of) factman, factmill. I also thought of indictment.
URYT - jury-tampering and purytylene were answered, as well as eurytypic (is this an alternate spelling of eurytopic?), which is closest to what I had in mind – eurythmics.
I mentioned a while back another one for YNCR (bibliophage got my first guess, syncretic), and that is idioscyncrasy.
New ones from me :
UTM (probably fairly easy, since it was a typo)
these are all more obscure than my previous words.
TISIM
SQUAMP
LIPY
RMIF
SIEQ
OKEF
Figures.
UTM - so easy, it was answered before I asked it.
The other sequences I’ve given occur in the middle of the words I’m thinking of, though there is an alternate answer for one that puts it on the end of a word.
As a help for others, there’s a number of word lists (try the links here and the various lists at the nat’l puzzlers’ league) that can be downloaded and then searched using a basic word processor. That’s how I checked for the (relative) uniqueness of my sequences. Of course it’s unfair to use these to get the answer, but I doubt anyone’s doing that.
Please note that those word lists sometimes remove hyphens in words, so are not necessarily stand-alone references for this.
I can’t find tailfin in any of my dictionaries. IS it a word?
sailfish is good. So is the (more obscure?) devilfish. Maybe there’s a few other fish too!
Niobium was what I had in mind, as well. Some funky letters going on in some o’ them element names.
Wish I’d had more time to play round two…this is really addictive!