Forest keepers who play in Scotland (7)

I believe the answer is:

rangers

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'forest keepers' is the definition.
(forest rangers)

I don't understand how the remainder of the clue works.

(Other definitions for rangers that I've seen before include "Administrators of Forest" , "football team" , "Park/forest keepers" , "Forest staff" , "Park or forest keepers" .)

I've seen this clue in The Guardian.

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