Can't see that these have been answered before. I'm stuck on 3:
2d Element of tongue swallowed by tailless bit cat [8]: PL-T---M [only word I can think of which would fit is PLATFORM - but can't fathom out why]
4d Fool removed my bloomers at Bath venue! [8,5]: -S-E---Y -O-M-
12a Comedian not cornier? Bet he could be! [6,7]: -o---e -o---t-