Stain a pot cooking Italian food (9)
I believe the answer is:
antipasto
'italian food' is the definition.
(I've seen this before)
'stain a pot cooking' is the wordplay.
'cooking' indicates anagramming the letters (letters cooked up into a new form).
'stain'+'a'+'pot'='stainapot'
'stainapot' is an anagram of 'ANTIPASTO'.
(Other definitions for antipasto that I've seen before include "Italian food" , "dishes" , "Italian hors d'oeuvres" , "course leader" , "Appetizer course in an Italian meal" .)