Crossword Genius

Excellent singer finally in tune (3)


I believe the answer is:


'tune' is the definition.
(air can mean a piece of music)

'excellent singer finally' is the wordplay.
'excellent' becomes 'ai' (resembles 'A1', old-fashioned term for excellent).
'finally' indicates one should take the final letters.
The final letter of 'singer' is 'r'.

'in' is the link.

(Other definitions for air that I've seen before include "coming through the open window" , "Gas mix surrounding the earth" , "14" , "Ventilate with oxygen" , "character" .)

I've seen this clue in The Sun.
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