2-wheeled vehicle failing to start (6)

I believe the answer is:

cooter

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'2-wheeled' is the definition.
I can't tell whether this defines the answer.

'vehicle failing to start' is the wordplay.
'vehicle' becomes 'scooter' (scooter is a kind of vehicle).
'failing to start' means to remove the first letter.
'scooter' with its first letter taken away is 'COOTER'.

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I've seen this clue in The Guardian.

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