Scooter (5)
I believe the answer is:
moped
'scooter' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for moped that I've seen before include "Light motorcycle" , "Vehicle - sulked" , "Was in low spirits about the low-powered motorbike" , "Motor vehicle - languished" , "Motorised bicycle" .)