English fighter and judge move abroad (8)
I believe the answer is:
emigrate
'move abroad' is the definition.
(I've seen this before)
'english fighter and judge' is the wordplay.
'english' becomes 'e' (abbreviation).
'fighter' becomes 'mig' (fighter jet produced by Russian company MiG).
'and' says to put letters next to each other.
'judge' becomes 'rate' (rating is a kind of judging).
'e'+'mig'+'rate'='EMIGRATE'
(Other definitions for emigrate that I've seen before include "Move overseas" , "Leave one's country to live elsewhere" , "Leave home" , "Go to live abroad" , "leave for ever" .)