Establish boundaries: Jutland's country not Norse (6)

I believe the answer is:

demark

'establish boundaries' is the definition.

'jutland's country not norse' is the wordplay.
'jutland's country' becomes 'denmark' (I've seen this in another clue).
'not' is a deletion indicator.
'norse' becomes 'N' (abbreviation in linguistics).
'denmark' with 'n' taken out is 'DEMARK'.

(Another definition for demark that I've seen is " Set boundaries".)

I've seen this clue in The Everyman puzzle in The Observer.

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