One fled to the country (4)
I believe the answer is:
iran
'the country' is the definition.
(Iran is an example)
'one fled' is the wordplay.
'one' becomes 'i' (Roman numeral).
'fled' becomes 'ran' (I've seen this before).
'i'+'ran'='IRAN'
'to' acts as a link.
(Other definitions for iran that I've seen before include "Asian country" , "oil supplier" , "Country where ayatollahs replaced a shah" , "Previously known as Persia" , "Modern-day Persia" .)