Counter blow (6)
I believe the answer is:
buffet
This clue is a double definition.
'counter' is the first definition.
(I know that counter can be written as buffet)
'blow' is the second definition.
(thesaurus)
(Other definitions for buffet that I've seen before include "Batter - refreshment counter" , "Refreshment counter - slap" , "Variety of restaurant" , "self-service place" , "cold meats, etc." .)