Ladies relatives visit, but not for long (4,2)
I believe the answer is:
look in
'visit but not for long' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'ladies relatives' is the wordplay.
'ladies' becomes 'loo' ('the ladies' is a type of loo or toilet).
'relatives' becomes 'kin' (kin can mean relatives or family).
'loo'+'kin'='LOOK-IN'
Can you help me to learn more?
(Other definitions for look in that I've seen before include "Make a short visit" , "Chance to participate" .)