Rabbits' kin (5)
I believe the answer is:
hares
'rabbits' kin' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hares that I've seen before include "Long-eared animals" , "Shares out the swift little animals" , "Fast animals" , "Share of wild animals" , "Rabbit-like creatures" .)