Throw out English judge before European court (5)
I believe the answer is:
eject
'throw out' is the definition.
('eject' can be a synonym of 'throw out')
'english judge before european court' is the wordplay.
'english' becomes 'e' (abbreviation).
'judge' becomes 'j'.
'before' says to put letters next to each other.
'european' becomes 'e' (abbreviation e.g. EU).
'court' becomes 'ct'.
'e'+'j'+'e'+'ct'='EJECT'
(Other definitions for eject that I've seen before include "What pilot may do" , "Video button" , "Throw or put out" , "exile" , "Drive out" .)