Crack the case is a phrase used to describe the process of solving a difficult problem or mystery. It is often used in the context of criminal investigations, where detectives must use their skills and knowledge to uncover the truth. In this context, the term 'crack the case' implies that the detective has successfully solved the mystery. The crossword solutions for the term 'crack the case' are SOLVE, which is a five-letter word meaning to find an answer or solution to a problem.