Glorify going topless? Not so much (4)
I believe the answer is:
less
'not so much' is the definition.
(I've seen this in another clue)
'glorify going topless?' is the wordplay.
'glorify' becomes 'bless' (I've seen this in another clue).
'going topless?' means to remove the first letter.
'bless' with its first letter taken away is 'LESS'.
(Other definitions for less that I've seen before include "A smaller amount" , "Wanting" , "inferior" , "See 12" , "Comparative of 'a little'" .)