Give Chanel a drink (5)
I believe the answer is:
cocoa
'drink' is the definition.
(I know that cocoa is a type of drink)
'give chanel a' is the wordplay.
'give' means one lot of letters go next to another.
'chanel' becomes 'coco' (I've seen this before).
'coco' next to 'a' is 'COCOA'.
(Other definitions for cocoa that I've seen before include "product of beans!" , "Powdered cacao seeds" , "Chocolatey drink" , "Bedtime drink made from powder" , "Hot bedtime drink" .)