Drink? Remain very empty (4)
I believe the answer is:
bevy
'drink?' is the definition.
(I have seen 'a drink' mean 'bevy' so perhaps 'drink' could also mean 'bevy')
'remain very empty' is the wordplay.
'remain' becomes 'be' (I've seen this in other clues).
'empty' means to remove the middle letters.
'very' with its middle taken out is 'vy'.
'be'+'vy'='BEVY'
(Other definitions for bevy that I've seen before include "Large group (of people)" , "Gaggle" , "Flock of larks; group of beautiful women" , "Collective noun for beauties" , "female company?" .)