Gentle creature on motorbike races a scooter (9)

I believe the answer is:

lambretta

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'scooter' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'gentle creature on motorbike races a' is the wordplay.
'gentle creature' becomes 'lamb' (I've seen this in another clue).
'on' becomes 're' (regarding).
'motorbike races' becomes 'TT' (Isle of Man Tourist Trophy races).
'lamb'+'re'+'tt'+'a'='LAMBRETTA'

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I've seen this clue in The Times.

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