Crossword Genius

I'm great playing jazz (7)

Ross

I believe the answer is:

ragtime

'jazz' is the definition.
(thesaurus)

'i'm great playing' is the wordplay.
'playing' indicates an anagram.
'im'+'great'='imgreat'
'imgreat' with letters rearranged gives 'RAGTIME'.

(Other definitions for ragtime that I've seen before include "Scott Joplin's genre" , "Song and dance" , "Maigret (anag)" , "Scott Joplin genre" , "Scott Joplin art form" .)

I've seen this clue in The Telegraph.
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