The Boar's Head takes in a lot of wine (3)
I believe the answer is:
bin
'a lot of wine' is the definition.
(bin can mean a container for wine)
'the boar's head takes in' is the wordplay.
'head' suggests taking the first letters.
'takes' is a charade indicator (letters next to each other).
The initial letter of 'boars' is 'b'.
'b'+'in'='BIN'
(Other definitions for bin that I've seen before include "Graves seen here" , "Receptacle for kitchen rubbish" , "Litter container" , "Common receptacle for household waste" , "Wine store; throw away" .)