Placed on site before a country (7)
I believe the answer is:
estonia
'country' is the definition.
(I've seen this before)
'placed on site before a' is the wordplay.
'placed' is an anagram indicator (placing the letters).
'before' is a charade indicator (letters next to each other).
'on'+'site'='onsite'
'onsite' anagrammed gives 'estoni'.
'estoni'+'a'='ESTONIA'
(Other definitions for estonia that I've seen before include "European country, capital Tallinn" , "So eat in about here in Northern Europe" , "Land" , "So eat in poorly on the Baltic Sea" , "One of the Baltic States" .)