Lands in Eastern America (7)
I believe the answer is:
estates
'lands' is the definition.
('estate' can be a synonym of 'land')
'eastern america' is the wordplay.
'eastern' becomes 'e'.
'america' becomes 'states' (the United States).
'e'+'states'='ESTATES'
'in' is the link.
(Other definitions for estates that I've seen before include "Large cars" , "Demesnes" , "Country properties" , "The dead leave them" , "residential areas" .)