Crossword Genius

Anger following new report about European collection (10)

Ross

I believe the answer is:

repertoire

I'm a little stuck... Click here to teach me more about this clue!

'anger following' is the definition.
The answer and definition can be both groups as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'new report about european collection' is the wordplay.
'new' is an anagram indicator.
'about' indicates putting letters inside.
'european' becomes 'e' (abbreviation e.g. EU).
'collection' becomes 'ire' (I can't justify this - if you can you should give a lot more credence to this answer).
'report' anagrammed gives 'rperto'.
'rperto' placed around 'e' is 'reperto'.
'reperto'+'ire'='REPERTOIRE'

Can you help me to learn more?

(Other definitions for repertoire that I've seen before include "The pieces played by an artiste" , "stock" , "Range of skills or songs" , "This is all actor can portray" , "Pieces a performer knows and plays" .)

I've seen this clue in The Telegraph.
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