A lot of money for air! (7)

I believe the answer is:

fortune

'a lot of money' is the definition.
(I've seen this before)

'for air' is the wordplay.
'air' becomes 'tune' (air can mean a piece of music).
'for'+'tune'='FORTUNE'

(Other definitions for fortune that I've seen before include "Providence" , "Great accumulation of wealth" , "large sum of money" , "Big bucks - fate" , "Fate, destiny" .)

I've seen this clue in the Sydney Morning Herald.

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