Quiet place for fun (4)
I believe the answer is:
play
'fun' is the definition.
('play' can be a synonym of 'fun')
'quiet place' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano').
'place' becomes 'lay' (laying is a kind of placing).
'p'+'lay'='PLAY'
'for' acts as a link.
(Other definitions for play that I've seen before include "See 17" , "Hamlet, for example" , "Scope - entertainment" , "Theatre performance" , "Drama; engage in games" .)