Killjoy makes joke about woman (7)
I believe the answer is:
puritan
'killjoy' is the definition.
(I've seen this before)
'joke about woman' is the wordplay.
'joke' becomes 'pun' (punning is a kind of joking).
'about' is an insertion indicator.
'woman' becomes 'rita' (**).
'pun' going around 'rita' is 'PURITAN'.
'makes' is the link.
(Other definitions for puritan that I've seen before include "Upright" , "Extreme moralist" , "Prude" , "Over-strict moralist" , "Person of extreme moral strictness" .)