Beaver-like rodent (5)
I believe the answer is:
coypu
'beaver-like rodent' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for coypu that I've seen before include "Large semiaquatic rodent" , "S American rodent inadvertently introduced into Europe" , "Animal -- source of nutria fur" , "Beaver-like creature" , "S. American "beaver"" .)