Club's court date (4)
I believe the answer is:
wood
'club's' is the definition.
(wood is a kind of club)
'court date' is the wordplay.
'court' becomes 'woo' (both can mean to romance someone).
'date' becomes 'd' (common abbreviation eg in DOB, date of birth).
'woo'+'d'='WOOD'
(Other definitions for wood that I've seen before include "Wind instrument - golf club" , "Kind of musical instrument" , "Driver, perhaps" , "Revered Proms character" , "Concert promoter" .)