The crossword solution for the term 'ENDING FOR AUTO' is CRAT, which is a four-letter word. The term 'CRAT' is an abbreviation for 'CRATER, ' which is a bowl-shaped depression in the surface of a planet or moon, typically one caused by an impact or the eruption of a volcano. In the context of automobiles, it is used to refer to a vehicle that has been damaged beyond repair, usually due to a collision or other accident.