Frog's kin (4)
I believe the answer is:
toad
'frog's kin' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for toad that I've seen before include "A loathsome person" , "Warty amphibian" , "Warty creature" , "Dangerous driver" , "Wind in Willows hall-owner" .)