The crossword solution for the term 'WHAT DOESN'T GO A LONG WAY?' is LAT, which stands for 'lowest acceptable time'. This phrase is used in the context of aviation, where it refers to the minimum amount of time that a pilot must spend in the air before they can land. It is also used in other contexts, such as in the military, to refer to the minimum amount of time that must be spent on a task before it can be completed.