Herding dog (6)

I think it could be either:

Which length description are you looking for?:

6,6

collie

'herding dog' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for collie that I've seen before include "Scottish sheep dog" , "Sheepdog with long pointed muzzle" , "See 2" , "Long-haired intelligent dog" , "Shepherd's dog" .)

I've seen this clue in the USA Today and the Newsday.

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