A little drink with food might improve your profile (3,3,4)
I believe the answer is:
nip and tuck
'might improve your profile' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'a little drink with food' is the wordplay.
'a little drink' becomes 'nip' (I've seen this in another clue).
'with' becomes 'and'.
'food' becomes 'tuck' (I've seen this before).
'nip'+'and'+'tuck'='NIP AND TUCK'
Can you help me to learn more?
(Other definitions for nip and tuck that I've seen before include "Level in a race, competition or comparison" , "Operations to decrease" , "operation" , "Hard to separate" , "Neck and neck - plastic surgery" .)