Former lover I left, meeting European in bar (5)
I believe the answer is:
exile
'bar' is the definition.
(thesaurus)
'former lover i left meeting european' is the wordplay.
'former lover' becomes 'ex'.
'left' becomes 'l' (common abbreviation**).
'meeting' is a charade indicator (letters next to each other).
'european' becomes 'e' (abbreviation e.g. EU).
'ex'+'i'+'l'+'e'='EXILE'
'in' acts as a link.
(Other definitions for exile that I've seen before include "Person forced from country" , "Person absent from home or country" , "Displaced person from former French island" , "forced to leave" , "Bar (someone) from their native country" .)