Force company representative to take European line (6)
I believe the answer is:
compel
'force' is the definition.
(I've seen this in another clue)
'company representative to take european line' is the wordplay.
'company' becomes 'co' (abbreviation).
'representative' becomes 'mp' (Member of Parliament).
'to take' says to put letters next to each other.
'european' becomes 'e' (abbreviation e.g. EU).
'line' becomes 'l' (used when specifying particular lines from a poem).
'co'+'mp'+'e'+'l'='COMPEL'
(Other definitions for compel that I've seen before include "Bring about by force" , "drive on" , "Use force or influence to make something happen" , "Force, oblige to do something" , "Make someone do something" .)