Western Canadian territory (5)
I believe the answer is:
yukon
'western canadian territory' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for yukon that I've seen before include "Territory of northwest Canada" , "Canadian territory, famed for the 1897 gold rush" , "North American banker" , "Canadian territory, river" , "remote territory" .)