I don't think the clues you're missing will help with W or (the shorter) M, dylan.
21 - 'moulding' is the def - anag C(od's) MAY + [I (='one') inside a 3 letter word for 'gut'].
47 def - the obvious one for 'clarets etc' - a generic name for 'Communist' + 'rogue'/cad (5 letters + take its first letter to the end).