Scottie or Yorkie (7)
I believe the answer is:
terrier
'scottie or yorkie' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for terrier that I've seen before include "Small, originally burrowing, dog" , "Small lively dog, may be Scotch" , "Dog bred for hunting" , "Dog originally used to ferret out burrowing animals" , "Breed of dog - volunteer soldier - estate register" .)