Microsoft (Mycroft + SO)
+++
They say you frequently err by an order of magnitude (10)
Didn’t solve this one but really like it 
.
OFTENTIMES (sounds like “off ten times”)
+++++
Astronomer is less tidy (7)
Messier
+++++
To transgress again is a sticky situation (5)
RESIN (spelled alike)
It’s evil, crooner Bobby, to use Elven words. (8)
SINDARIN (Sin + Darin)
++++++
In MMA, Charles uses no weapons (8).
Nunchuck (none Chuck)
+++++
Throw rebel back to crazy king? Sweet and seedy! (13)
Throw rebel back to crazy king? Sweet and seedy! (13)
HUCKLEBERRIES (Huck + “rebel” backwards + sire*)
+++++
Sets apart cracked Easter eggs. (10)
SEGREGATES (anagram)
Exam will encompass, returning concerns about four-dimensional shape. (9)
TESSERACT (test, with “cares” backwards inside)
+++++
Procedure for quickly reading DEFGHIJKLMNOPQRS (1, 1, 4)
CT scan
++++
Ten are becoming niftier (6)
NEATER (ten are*)
+++++
Mock oral exams, hesitate at first (6)
Ersatz (Er + SATs, using z for s as in a homophone)?
Very good - I think this was a tougher one. The “oral” in the clue was meant to indicate ‘sounds like’. Carry on!
I was puzzled at first by the oral part, as the SATs are not that kind of exam. That’s why I didn’t answer outright. But the penny dropped right after I posted. Nice one.
I like solving but coming up with good clues is challenging. I don’t have time to put into it right now, but don’t want to stall the game. Therefore I humbly defer my puzzle-posting to anyone who wants to take it.
In play: ERSTAZ
Ok, nm. I have one:
Archipelago lulls a brain to sawing logs (8)
ZANZIBAR (a + brain + zz)
When Rome moved into tannery worker territory, it created an atmospheric pressure reader. (9)
Barometer (Rome inside bater)
Although bater is not a widely spoken about occupation, nearly everyone secretly becomes a Master at it.
+++++
I hear Mr. Crowe is notorious for illegally acquiring stock (6).
RUSTLE (soundalike)
Jerky lion seen causing disaster while he screamed his name in a viral WoW video. (6, 7)
LEROY JENKINS (anagram)
+++++
Family cruise(7)
Kinship
++++
Tut seldom opposed Spooner (7)