Grainy Sheet for Making Surfaces Smooth and Flat

This page is the CodyCross answer for the clue below from Art Museum, Group 730, Puzzle 5 (Literary Works).

Question is: Grainy Sheet for Making Surfaces Smooth and Flat

and the answer is: SANDPAPER

Word Meaning:

SANDPAPER — (uncountable) Strong paper coated with (traditionally) sand or (today) manufactured aluminum oxide, silicon carbide, or other abrasive material, used for smoothing and polishing.

Definitions from Wiktionary.