The crossword solution for the term 'GET READY, WITH 'UP'' is GEAR, which is a four-letter word. GEAR is a noun that refers to a set of components that work together to produce motion or power. It is often used in reference to the parts of a machine or vehicle that are used to control its speed and direction. In this context, it can be interpreted as an instruction to prepare oneself for something, as in 'get ready, with 'UP''.