A drink to help in recuperation (3)
I believe the answer is:
cup
'a drink' is the definition.
(a cup of drink)
'in recuperation?' is the wordplay.
'in' indicates a hidden word.
'CUP' is hidden within 'recuperation'.
'to help' is the link.
(Other definitions for cup that I've seen before include "Chalice; trophy" , "Prize; vessel" , "Award; mug" , "McCarthy, Walker or Maguire" , "competition" .)