Take a little drink (3)
I believe the answer is:
sip
'take a little drink' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sip that I've seen before include "Thimbleful" , "Drink slowly" , "Drink daintily" , "Take a little of a drink" , "Drink in tiny mouthfuls" .)