Crossword Genius

Really good rousing start for a tune (3)

Ross

I believe the answer is:

air

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

'really good rousing start' is the wordplay.
'really good' becomes 'ai' (I can't explain this - if you can you should give a lot more credence to this answer).
'start' says to take the initial letters.
The initial letter of 'rousing' is 'r'.
'ai'+'r'='AIR'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for air that I've seen before include "Feel" , "Song; ventilate" , "distinctive quality" , "Bearing, manner" , "Ventilate with oxygen" .)

I've seen this clue in the Evening Standard.
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