Pig in the wild
I believe the answer is:
boar
'pig in the wild' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for boar that I've seen before include "Uncastrated male hog" , "A wild male pig" , "Wild swine" , "The head for drink Falstaff had" , "A male pig, sounds tedious" .)