Damage to a stocking, dash it! (3)
I believe the answer is:
run
'damage' is the definition.
(I know that run is a type of damage)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for run that I've seen before include "Discharge" , "Proceed quickly" , "A point scored in cricket" , "freedom of access" , "Operate; flow" .)