Bachelor getting hot drink (6)
I believe the answer is:
brandy
'drink' is the definition.
(brandy is a kind of drink)
'bachelor getting hot' is the wordplay.
'bachelor' becomes 'B' (abbreviation e.g. BA=Bachelor of Arts).
'getting' means one lot of letters go next to another.
'hot' becomes 'randy' (synonyms).
'b'+'randy'='BRANDY'
(Other definitions for brandy that I've seen before include "Grape wine spirit" , "Spirit from grapes" , "What a hero must drink, according to Dr Johnson" , "- - -snap" , "& 24 Mincepie accompaniment" .)