A quiet game (5)
I believe the answer is:
whist
I believe this is a double definition.
'a quiet' is the first definition.
(thesaurus)
'game' is the second definition.
(I know that whist is a type of card)
(Other definitions for whist that I've seen before include "Trick-taking card game" , "Tricky card game" , "Card game, often played at a "drive"" , "calls for silence?" , "Popular card game, sometimes solo" .)