A drink and a bite (3)
I believe the answer is:
nip
I believe this is a double definition.
'a drink' is the first definition.
(I've seen this before)
'a bite' is the second definition.
(I know that nip is a type of bite)
'and' acts as a link.
(Other definitions for nip that I've seen before include "A small whisky" , "pop and > have a bite" , "Pinch sharply, perhaps in the bud" , "Light bite" , "Pinch using pin" .)