Aussie bearlike beast (5)
I believe the answer is:
koala
'aussie bearlike beast' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for koala that I've seen before include "Australian animal" , "Tree-dwelling marsupial" , "Aussie 'bear'" , "Australian marsupial which lives on eucalyptus leaves" , "Bear-like Australian marsupial" .)