Piggish proboscis (5)
I believe the answer is:
snout
'piggish proboscis' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for snout that I've seen before include "Pig's nose" , "Muzzle; Wall (MND)" , "Nose, tobacco (colloq.)" , "Tobacco -- hooter" , "Nose and mouth of a mammal" .)