Wear away, geologically (5)
I believe the answer is:
erode
(Other definitions for erode that I've seen before include "Corrode" , "Eat away" , "Gradually destroy" , "Wear away with weather" , "'Deteriorate, wear away (5)'" .)
I believe the answer is:
erode
(Other definitions for erode that I've seen before include "Corrode" , "Eat away" , "Gradually destroy" , "Wear away with weather" , "'Deteriorate, wear away (5)'" .)