Hide the snuff? (7)
I believe the answer is:
smother
This clue is a double definition.
'hide' is the first definition.
(thesaurus)
'the snuff?' is the second definition.
(thesaurus)
(Other definitions for smother that I've seen before include "Prevent from breathing" , "2 (anag)" , "Conceal" , "don't give enough freedom" , "Kill by depriving of air" .)