Meet European by new bar (9)
I believe the answer is:
Here is my best explanation:
'meet' is the definition.
('encounter' can be a synonym of 'meet')
'european by new bar' is the subsidiary indication.
'european' becomes 'e' (abbreviation e.g. EU).
'by' says to put letters next to each other.
'new' becomes 'n'.
'bar' becomes 'counter' (I've seen this in other clues**).
(Other definitions for encounter that I've seen before include "Struggle", "Meet unexpectedly", "Run into - combat", "Meet by chance with encore nut", "Unexpected meeting", "Meet; confrontation", "Meeting", "Face", "Come across, meet" and "battle".)