Stocky carnivorous burrowing mammal with strong claws and a black and white striped face (6)
I believe the answer is:
badger
(Other definitions for badger that I've seen before include "Pester -- nocturnal mammal" , "Nocturnal black and white animal" , "Animal hunted by stocky dog" , "Animal at home in a sett" , "quarry, perhaps" .)