Gluttonous sort (3)
I believe the answer is:
hog
'gluttonous sort' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hog that I've seen before include "Gourmand" , "Greedy person or pig for slaughter" , "Selfishly keep" , "Selfish type" , "Porker" .)