Risks a ticket (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
speeds
'risks a ticket' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for speeds that I've seen before include "Rates of acceleration" , "these may be in knots" , "Rates of movement" , "Goes fast, maybe too fast" , "Moves very quickly" .)