Figures leave cats on crumpled covers (8)
I believe the answer is:
octagons
This could be a double definition.
'figures' is the first definition.
(octagon is a kind of figure)
'cats on crumpled covers' is the second definition.
Although both the answer and definition are plural nouns, I cannot see how they can define each other.
'leave' is the link.
Can you help me to learn more?
(Other definitions for octagons that I've seen before include "Geometric figures with eight sides" , "Eight-sided geometric figures" , "Eight-sided shapes" .)