Crossword clues for the word: POISONER The word POISONER has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for POISONER Showing 1 to 8 of 8 results Clue(s) "Arsenic user, maybe" "Aunt in ""Arsenic and Old Lace""" "Christie culprit, perhaps" "Claudius, notably" "Venom injector, e.g." I soon skipped through “Catching the Killer” Snow White's stepmother, say, set up operation in forest, endlessly devious Whodunit villain.