Truffle-hunting animal (3)
I believe the answer is:
pig
'truffle-hunting animal' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pig that I've seen before include "Sow, perhaps" , "Mass of metal simply cast" , "Greedy eater" , "Boar or sow" , "Empress of Blandings?" .)