Layer of rock (5)
I believe the answer is:
ledge
(Other definitions for ledge that I've seen before include "Mantelpiece" , "Narrow projecting shelf as from window" , "A step" , "Ridge or shelf" , "Submerged underwater shelf" .)
I believe the answer is:
ledge
(Other definitions for ledge that I've seen before include "Mantelpiece" , "Narrow projecting shelf as from window" , "A step" , "Ridge or shelf" , "Submerged underwater shelf" .)