The term 'Nab in a Trap' can be summarized as the act of snaring or trapping someone. This phrase is often used to describe the act of capturing a criminal or suspect, as well as any other situation where someone is caught in a difficult or compromising position. The crossword solution for this term is SNARE, which is a device used to capture animals or people. SNARE traps are usually made of wire or rope and are designed to close around an animal or person when triggered.