Crossword clues for the word: ACERB The word ACERB has appeared as an answer to at least 56 crossword clues on different crossword puzzles. Crossword clues for ACERB Showing 51 to 56 of 56 results Clue(s) Tart in tone Tart of tone Unsweet. Very tart Vitriolic With a tart taste « Previous Next » 1 2