Lift remains of drink (7)
I believe the answer is:
heeltap
I believe this clue is a double definition.
'lift' is the first definition.
(lift can mean a shoe heel)
'remains of drink' is the second definition.
(term for the remains of a drink)
(Other definitions for heeltap that I've seen before include "little left to drink" , "Layer of leather at the back of a shoe" , "Drop left in glass" , "Last drop in glass" , "Shoe-layer material; dregs in glass" .)