Latvia neighbor (7)
I believe the answer is:
estonia
'latvia neighbor' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for estonia that I've seen before include "'So eat in here in Tallinn, say (7)'" , "Northern European country" , "Land" , "European country, capital Tallinn" , "Country on the Baltic Sea" .)