See drunk keeping quiet (4)
I believe the answer is:
spot
'see' is the definition.
(thesaurus)
'drunk keeping quiet' is the wordplay.
'drunk' becomes 'sot' ('sot' can be a synonym of 'drunk').
'keeping' indicates putting letters inside.
'quiet' becomes 'p' (music symbol for 'piano').
'sot' going around 'p' is 'SPOT'.
(Other definitions for spot that I've seen before include "Sight - site" , "Predicament" , "small amount" , "Pickle" , "See; pimple" .)