Red wine is too much for him (5)
I believe the answer is:
edwin
'him' is the definition.
'red wine is too much' is the wordplay.
'is too much' indicates the answer is hidden within the clue (the clue hides the answer plus unneeded letters).
'EDWIN' is hidden in the letters of 'red wine'.
'for' is the link.
(Other definitions for edwin that I've seen before include "Fellow" , "Dickens novel 'The Mystery of . . . . . Drood'" , "Sir - Landseer, artist" , "Old king's" , "Anglo-Saxon King" .)