A soup served cold (8)
I believe the answer is:
gazpacho
'a soup served cold' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for gazpacho that I've seen before include "dish best served cold" , "Soup appears" , "Spanish soup, served chilled" , "Spanish vegetable soup served cold" , "'Spicy Spanish soup, served cold (8)'" .)