Is a dashing candidate (4)
I believe the answer is:
runs
'is' is the definition.
The answer and definition can be both to do with ownership as well as being verbs in their -s form.
Perhaps there's a link between them I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for runs that I've seen before include "Manages" , "Points scored in cricket" , "Moves fast" , "ladders" , "Jogs" .)