Beaverlike rodent (5)
I believe the answer is:
coypu
'beaverlike rodent' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for coypu that I've seen before include "Beaver lookalike" , "Creature in fur coat" , "S American rodent inadvertently introduced into Europe" , "Large semiaquatic rodent" , "South American rodent bred for its fur, nutria" .)