Enjoy a buffet (3)
I believe the answer is:
eat
'enjoy a buffet' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eat that I've seen before include "Devour" , "Do cats - bats? Do bats - cats? (Alice in Wonderland)" , "and 27: Be humiliated" , "Worry" , "Have 23d [MEAL]" .)