Loose pig that’s beginning to eat human food (9)
I believe the answer is:
spaghetti
But I can't explain it at all! Could you help me understand?
(Other definitions for spaghetti that I've seen before include "Stringed pasta" , "Popular pasta dish, maybe bolognese" , "Pasta - Birmingham's junction" , "Pasta in long strips" , "Stranded fare" .)