Spider's Snare is a term used to describe a WEB created by a SPIDER. It is made of sticky silk that entraps its prey and is usually found in the corners of windows or walls. The term 'SPIDER's snare' can also be used to describe a situation in which someone is trapped or ensnared. The crossword solution for this term is WEB, which is an appropriate answer as it is the material used by spiders to create their snares.