Australian dog (5)
I believe the answer is:
dingo
'australian dog' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dingo that I've seen before include "One running wild in Australia" , "Kipling's yellow dog" , "Kipling's "Yellow-Dog"" , "Aus. wild dog" , "Wild dog of Oz" .)