Bound to carry the can for racing (9)
I believe the answer is:
sprinting
'racing' is the definition.
The answer and definition can be both to do with motion as well as being present participle verbs.
Maybe you can see a link between them that I don't see?
'bound to carry the can' is the wordplay.
'bound' becomes 'spring' (both can mean to leap).
'to carry' is an insertion indicator.
'the can' becomes 'tin' (both are metal containers).
'spring' placed around 'tin' is 'SPRINTING'.
'for' acts as a link.
Can you help me to learn more?
(Another definition for sprinting that I've seen is " running quickly".)