Extensive property (6)
'property' is the definition.
(elasticity is a kind of property)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for elasticity that I've seen before include "Springiness" , "Spring" , "Stretchiness" , "indication of how that may affect demand" .)
'extensive property' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for estate that I've seen before include "Nakedness" , "Italian summer" , "All money and property owned at time of death" , "Large car; property" , "Housing area" .)