Hard Brushing of a Surface to Clean Stubborn Dirt
This page is the CodyCross answer for the clue below from Hobbies, Group 1410, Puzzle 5 (Urban Exploration).
Question is: Hard Brushing of a Surface to Clean Stubborn Dirt
and the answer is: SCRUBBING
Word Meaning:
SCRUBBING — present participle and gerund of scrub
Definitions from Wiktionary.