Racket in English finale (6)
I believe the answer is:
'finale' is the definition.
(I've seen this before)
'racket in english' is the wordplay.
'racket' becomes 'din' (both can mean a loud noise or disturbance).
'in' is an insertion indicator.
'english' becomes 'eng' (abbreviation).
'din' placed inside 'eng' is 'ENDING'.
(Other definitions for ending that I've seen before include "Terminating" , "Closing down" , "Finish" , "Climax" , "Final part" .)