Bumper car (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
dodgem
'bumper car' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dodgem that I've seen before include "ride - with 14a" , "Bumper car" , "Electric car" , "Fairground amusement vehicle" , "Car used in fairground" .)