On, next to English extra (3,3)
I believe the answer is:
leg bye
'extra' is the definition.
(cricket term)
'on next to english' is the wordplay.
'on' becomes 'leg' (cricket term, fielding positions).
'next to' becomes 'by'.
'english' becomes 'e' (abbreviation).
'leg'+'by'+'e'='LEG-BYE'
(Other definitions for leg bye that I've seen before include "Type of run (cricket)" , "Extra 24 across" , "Extra run (cricket)" , "cricketer scoring off his pad" .)