Squash punch not totally masculine (3)
I believe the answer is:
jam
'squash' is the definition.
(jam can mean to squash or bash)
'punch not totally masculine' is the wordplay.
'punch' becomes 'jab' (jab is a kind of punch).
'not totally' means to remove the last letter.
'masculine' becomes 'm'.
'jab' with its last letter taken away is 'ja'.
'ja'+'m'='JAM'
(Other definitions for jam that I've seen before include "Spread; improvise (jazz)" , "awful traffic" , "Fruit preserve" , "problem" , "Preserve; pack tightly" .)