Coil to jump (6)
I believe the answer is:
spring
This could be a double definition.
'coil' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'jump' is the second definition.
(I know that jump can be written as spring)
'to' is the link.
Can you help me to learn more?
(Other definitions for spring that I've seen before include "warp" , "Season of growth" , "Wellhead or bounce" , "rise" , "Bound; source" .)