The term 'SOLVE A CASE' can be summarized as the act of finding a solution to a problem or mystery. This could involve investigating a crime, researching a medical issue, or analyzing a complex situation. It requires an individual to use their knowledge and skills to identify the cause of the problem and come up with a solution. The crossword solution for this term is 'CLOSE, ' which implies that the individual must find a way to bring the case to a successful conclusion.