Land in Eastern country (6)
I believe the answer is:
estate
'land' is the definition.
('estate' can be a synonym of 'land')
'eastern country' is the wordplay.
'eastern' becomes 'e'.
'country' becomes 'state' ('state' can be a synonym of 'country').
'e'+'state'='ESTATE'
'in' is the link.
(Other definitions for estate that I've seen before include "Amount of land - type of car" , "Tea-set (anag.)" , "Property - may go with rank" , "Nakedness" , "Rank - housing development - what's left in a will" .)