Wife with joint which may be beef (6)
I believe the answer is:
whinge
'beef' is the definition.
(both can mean to complain)
'wife with joint' is the wordplay.
'wife' becomes 'w'.
'with' is a charade indicator (letters next to each other).
'joint' becomes 'hinge' (hinge is a kind of joint).
'w'+'hinge'='WHINGE'
'which may be' is the link.
(Other definitions for whinge that I've seen before include "Moan" , "Complain, whine" , "Grumble or complain persistently" , "Peevish complaint" , "Complain annoyingly" .)