Child’s vehicle (7)
I believe the answer is:
scooter
'child's vehicle' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for scooter that I've seen before include "it may need physical boost" , "Wheeled board with steering handle" , "Child's two-wheeled vehicle" , "Moveable toy" , "Two-wheeler" .)