Hound finds elusive burrowing creature (6)
I believe the answer is:
badger
This clue is a double definition.
'hound' is the first definition.
(I've seen this before)
'elusive burrowing creature' is the second definition.
'finds' acts as a link.
(Other definitions for badger that I've seen before include "Plague - nocturnal animal" , "Mammal, striped head" , "hound perhaps?" , "quarry, perhaps" , "Harass - brock" .)