Head light is a term used to describe the light that is mounted on the front of a vehicle. It is used to illuminate the road ahead and provide visibility for the driver. The crossword solutions for the term head light are IDEA, AURA, and HALO. IDEA is a thought or concept that can be used to solve a problem or create something new. AURA is an invisible field of energy that surrounds a person or object. HALO is a circle of light that is often seen around the head of a holy figure in religious art.