Crossword clues for the word: HEATUP The word HEATUP has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for HEATUP Showing 1 to 8 of 8 results Clue(s) "Become interesting, like a pennant race" Become intense Become more intense Get exciting Get intense Get rockin' Intensify Warm, as leftovers