The term 'play detective' can be summed up by the crossword solution 'SNOOP, ' which is a five-letter word. To 'SNOOP' means to investigate or search for information in a secretive manner. It is often used to describe someone who is trying to uncover secrets or find out information that is not readily available. In the context of 'play detective, ' it implies that someone is trying to solve a mystery or uncover a hidden truth.