Frog relative (4)
I believe the answer is:
toad
'frog relative' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for toad that I've seen before include "Dangerous driver" , "Wind in Willows motorist" , "Ugly creature, jewel in head (AYLI)" , "Tailless amphibian" , "Contemptible person" .)