Crossword clues for the word: LIFEBLOOD The word LIFEBLOOD has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for LIFEBLOOD Showing 1 to 4 of 4 results Clue(s) Driving force? Vital element Vital element of biography refers to gory part of 5 down? Vital factor