Masculine types work for wimp (7)
I believe the answer is:
milksop
'for wimp' is the definition.
(I've seen this before)
'masculine types work' is the wordplay.
'masculine' becomes 'm'.
'types' becomes 'ilks' (I've seen this in another clue).
'work' becomes 'op' (abbreviation for opus).
'm'+'ilks'+'op'='MILKSOP'
(Other definitions for milksop that I've seen before include "Doormat" , "Namby-pamby" , "Cissy, fond of a pinta?" , "Wimpish fellow" , "Weak or effeminate man" .)