Clubs or diamonds (4)
I believe the answer is:
suit
I believe this is a double definition.
'clubs' is the first definition.
(clubs is a playing card suit)
'diamonds' is the second definition.
(diamonds is a playing card suit)
(Other definitions for suit that I've seen before include "It constitutes one quarter of a deck" , "Set of garments" , "One of four in a pack" , "C, D, H or S" , "executive" .)