Extensive landed property — needs me (anag) (7)

I believe the answer is:

demesne

(Other definitions for demesne that I've seen before include "Seed men (anag) -- land attached to a property and retained for the owner's personal use" , "Land attached to manor" , "Landed property used by the owner - needs me (anag)" , "Estate; sound like belittle" , "Domain" .)

I've seen this clue in The Guardian.

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