Smoke? Brave man, in bed (7)
I believe the answer is:
cheroot
'smoke?' is the definition.
(type of cigar)
'brave man in bed' is the wordplay.
'brave man' becomes 'hero' (a hero is a brave person).
'in' indicates putting letters inside.
'bed' becomes 'cot' (cot is a kind of bed).
'hero' placed inside 'cot' is 'CHEROOT'.
(Other definitions for cheroot that I've seen before include "16 21 [INDIAN IMPORT]" , "'Cigar, square at both ends (7)'" , "One smoked" , "smoke" , "Cigar with ends squarely removed" .)