Wearing Away, Like a Cliff's Surface
This page is the CodyCross answer for the clue below from Underground Worlds, Group 2180, Puzzle 3 (Coober Pedy Dugouts).
Question is: Wearing Away, Like a Cliff's Surface
and the answer is: ERODING
Word Meaning:
ERODING — present participle and gerund of erode
Definitions from Wiktionary.