Crossword clues for the word: CELLWALL The word CELLWALL has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for CELLWALL Showing 1 to 4 of 4 results Clue(s) Basic structural unit of a plant Boundary of a plant's basic structural unit: 2 wds. Microscopic structure surrounding a plasma membrane Where a con might tick off the days