Scramble at the pig's food (9)
I believe the answer is:
spaghetti
'food' is the definition.
(spaghetti is a kind of food)
'scramble at the pig's' is the wordplay.
'scramble' indicates an anagram.
'at'+'the'+'pigs'='atthepigs'
'atthepigs' with letters rearranged gives 'SPAGHETTI'.
(Other definitions for spaghetti that I've seen before include "Italian dish made from pasta, often Bolognese" , "The gas tip can produce a pasta" , "complex interchange just before junction" , "Italian food" , "Stringy pasta" .)