Tolerates animals (5)
I believe the answer is:
bears
I believe this clue is a double definition.
'tolerates' is the first definition.
('bear' can be a synonym of 'tolerate')
'animals' is the second definition.
(bear is a kind of animal)
(Other definitions for bears that I've seen before include "Large animals, polar or brown" , "Large animals, polar or grizzly" , "Ursine animals" , "Carries" , "Big animals" .)