Bear's abode (3)
I believe the answer is:
den
'bear's abode' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for den that I've seen before include "Wild animal's lair" , "Home of the beast" , "Hideaway" , "Animal's lair or man's study" , "Habitation of wild animals (3)" .)