The term 'crumple (up)' can be described by two crossword solutions: 'SCRUNCH' (7 letters) and 'WAD' (3 letters). SCRUNCH is a verb meaning to squeeze or compress something into a small space. It is often used to describe the action of crumpling paper. WAD is a noun that refers to a small, compact mass of something, such as a ball of paper. Both words are commonly used to describe the act of crumpling something up.