Crossword clues for the word: GUNPOWDER The word GUNPOWDER has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for GUNPOWDER Showing 1 to 7 of 7 results Clue(s) Conspiracy by a group of Catholic extremists to blow up James I and his Parliament on November 5, 1605 Content of some shells Explosive mixture Firework ingredient Flintlock need Ichabod Crane's horse in 'The Legend of Sleepy Hollow' It's used in gunnery and fireworks