Dishes out some appetiser vessels (6)
I believe the answer is:
serves
'dishes out' is the definition.
('serve' can be a synonym of 'dish out')
'some appetiser vessels' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'SERVES' can be found hidden inside 'appetiser vessels'.
(Other definitions for serves that I've seen before include "What a waiter does" , "Puts the ball in play on court" , "Strokes that puts the ball in play" , "Puts the tennis ball in play" .)