Crossword Genius

System converting song into aria (12)

Ross

I believe the answer is:

organisation

'system' is the definition.
(I know that system can be written as organisation)

'converting song into aria' is the wordplay.
'converting' is an anagram indicator.
'song'+'into'+'aria'='songintoaria'
'songintoaria' anagrammed gives 'ORGANISATION'.

(Other definitions for organisation that I've seen before include "System" , "Running" , "concern" , "Systematic approach to tasks" .)

I've seen this clue in The Times.
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