The term 'DASHBOARD GADGET' can be broken down into two words: 'DASHBOARD' and 'GADGET'. DASHBOARD is a term used to describe the control panel of a vehicle, typically located in front of the driver. A GADGET is a small device or tool that performs a specific task. Therefore, a DASHBOARD GADGET is a small device or tool that is installed on the DASHBOARD of a vehicle to perform a specific task. The crossword solution for the term 'DASHBOARD GADGET' is 'TACH', which is an abbreviation for tachometer, a device used to measure the rotational speed of an engine.