I fled this country (4)
I believe the answer is:
iran
'this country' is the definition.
(Iran is a country)
'i fled' is the wordplay.
'fled' becomes 'ran' (ran away).
'i'+'ran'='IRAN'
(Other definitions for iran that I've seen before include "Middle East country" , "Country of western Asia" , "Islamic republic on the Persian Gulf" , "Country to east of Iraq" , "Tehran's country" .)