Spinster's game (3,4)
I believe the answer is:
old maid
This clue is a double definition.
'spinster's' is the first definition.
(synonyms)
'game' is the second definition.
(I know that Old maid is a type of card game)
(Other definitions for old maid that I've seen before include "Spinster - card game" , "Elderly single woman - card game" , "game of cards" , "Excessively cautious person" , "Pejorative term for elderly unmarried woman" .)