Crossword Genius

An uplifting tune for singing (4)

Ross

I believe the answer is:

aria

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

'an uplifting tune' is the wordplay.
'an' becomes 'a'.
'uplifting' is a reversal indicator.
'tune' becomes 'air' (air can mean a piece of music).
'air' written backwards gives 'ria'.
'a'+'ria'='ARIA'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for aria that I've seen before include "part of opera, maybe" , "Type of song" , "Operatic part" , "Imitative art work" , "Operatic song" .)

I've seen this clue in The Globe and Mail, The Irish News and The Guardian.
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