Stoat out gathering commercial food that's fried (7)
I believe the answer is:
tostada
'food that's fried' is the definition.
(type of fried snack)
'stoat out gathering commercial' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'gathering' indicates putting letters inside.
'commercial' becomes 'ad' (abbreviation for advertisement).
'stoat' with letters rearranged gives 'tosta'.
'tosta' placed around 'ad' is 'TOSTADA'.
(Other definitions for tostada that I've seen before include "spicy food" , "Mexican food" , "Crisp 15 down" , "Mexican topped pancake" .)