Tune left for John Lennon, for example (7)

I believe the answer is:

airport

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'john lennon for example' is the definition.
I can't tell whether this defines the answer.

'tune left' is the wordplay.
'tune' becomes 'air' (air can mean a piece of music).
'left' becomes 'port' (left side of a ship - opposite of starboard).
'air'+'port'='AIRPORT'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for airport that I've seen before include "Place of takeoffs and landings" , "passenger terminal" , "Transport hub" , "See 18" , "where flight begins or ends" .)

I've seen this clue in The Times.

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