Women act poorly in bash (4)
I believe the answer is:
wham
'bash' is the definition.
(thesaurus)
'women act poorly' is the wordplay.
'women' becomes 'w' (standard abbreviation).
'act poorly' becomes 'ham' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'w'+'ham'='WHAM'
'in' is the link.
Can you help me to learn more?
(Other definitions for wham that I've seen before include "Strike -- 1980s' pop group" , "Sound of heavy blow" , "Eighties pop group" , "Come down hard on" , "striker may do so" .)