Cold dishes of vegetables or fruits (6)
I believe the answer is:
salads
'cold dishes of vegetables or fruits' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for salads that I've seen before include "Cold, dressed dishes" , "Cold meals based on lettuce and vegetables" , "Vegetable or fruit mixtures" , "Mixtures of lettuces etc." , "Cold dishes with lettuce etc" .)