Vegetable — drink (6)
I believe the answer is:
squash
I believe this is a double definition.
'vegetable' is the first definition.
(I know that squash is a type of vegetable)
'drink' is the second definition.
(I've seen this before)
(Other definitions for squash that I've seen before include "Court game - marrow-like plant" , "Crush, squelch" , "Racket game or vegetable gourd" , "Racquet sport" , "Put down - indoor game" .)