Wag Club? (4)
I believe the answer is:
card
I believe this is a double definition.
'wag' is the first definition.
(both can mean a humorous person)
'club?' is the second definition.
(club is a kind of card)
(Other definitions for card that I've seen before include "Amusing person" , "one in a suit" , "Something (usually) folded with a special message" , "programme at race meeting" , "A eccentric - a joker, perhaps" .)