Main Component of a Plant's Cell Wall
This page is the CodyCross answer for the clue below from Working From Home, Group 1221, Puzzle 4 (Clocking in).
Question is: Main Component of a Plant's Cell Wall
and the answer is: CELLULOSE
Word Meaning:
CELLULOSE — A complex carbohydrate that forms the main constituent of the cell wall in most plants and is important in the manufacture of numerous products, such as paper, textiles, pharmaceuticals, and explosives.
Definitions from Wiktionary.