Careers for which one is unsuited (7)
I believe the answer is:
streaks
'careers for which one is unsuited' is the definition.
The answer and definition can be both to do with motion as well as being verbs in their -s form.
Maybe there's a link between them I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for streaks that I've seen before include "Stripes for skaters" , "Runs naughtily nude in public" , "Skaters (anag.)" .)