Suppress game (6)
I believe the answer is:
squash
I believe this is a double definition.
'suppress' is the first definition.
(thesaurus)
'game' is the second definition.
(squash is a kind of game)
(Other definitions for squash that I've seen before include "A sport; a drink; a veg" , "Crush, squelch" , "Game; crush, squeeze" , "Crush or squeeze flat" , "Drink and racket game" .)