Maybe Carmen completely fills punt (6)

I believe the answer is:

ballet

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'maybe carmen' is the definition.
I can't judge whether this definition defines the answer.

'completely fills punt' is the wordplay.
'completely' becomes 'all' (synonyms).
'fills' is an insertion indicator.
'punt' becomes 'bet' (I've seen this in other clues).
'all' put inside 'bet' is 'BALLET'.

Can you help me to learn more?

(Other definitions for ballet that I've seen before include "Classical dance form" , "kind of skirt" , "The theatre of dance" , "Type of dance" , "The Nutcracker or Giselle, say" .)

I've seen this clue in The Sun.

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