affront
saffron
Formosa
formica
America
Crimean
carmine
minecar
cinemas
anemics
opps, no letter change
Cinemat
@Ignatz, check the recently amended thread title – anagrams are legal, now. But don’t try that crap over in “Six-letter words…” or we’re all screwed. 
I say we make the same change in the 6-letter thread, make it “zero to two letters”.
In play:
climate
thermal
mothers
fathers
another
thrones
throngs
growths
worthed