Food and drink supplier (7)
I believe the answer is:
caterer
'food and drink supplier' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for caterer that I've seen before include "Person who supplies food for social events" , "Refreshment supplier" , "Terrace (anag.)" , "Provider of food and drink" , "One providing food and service for a party" .)