Siberian sled dog (7)
I believe the answer is:
samoyed
'siberian sled dog' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for samoyed that I've seen before include "[HOUND] ?" , "Breed of white dog from Siberia - May's ode (anag)" , "one barking" , "Arctic dog" , "not setter!" .)