Everyman fled the country (4)
I believe the answer is:
iran
'country' is the definition.
(Iran is a country)
'everyman fled' is the wordplay.
'everyman' becomes 'i' (where 'Everyman' is the setter of the crossword).
'fled' becomes 'ran' (ran away).
'i'+'ran'='IRAN'
'the' is the link.
(Other definitions for iran that I've seen before include "Rain (anag) - country" , "Asian country" , "Modern Persia (4)" , "Former Persia" , "Iraq's neighbour" .)