Eastern country property (6)
I believe the answer is:
estate
'property' is the definition.
(estate is a kind of property)
'eastern country' is the wordplay.
'eastern' becomes 'e'.
'country' becomes 'state' ('state' can be a synonym of 'country').
'e'+'state'='ESTATE'
(Other definitions for estate that I've seen before include "Property to be inherited" , "One's property after death" , "The whole of one's possessionsat death" , "Lands" , "Property and possessions of the deceased" .)