The crossword solution for the term 'Sphere in a Socket' is 'EYE'. This is a reference to the common phrase 'the EYE in the sky', which is used to describe surveillance or monitoring from a distance. The phrase is often used to refer to cameras, satellites, or other forms of technology that allow people to observe events from afar. In this case, the 'sphere in a socket' is an EYE, which is being used to monitor something.