The crossword solution for the term CLEAR UP, IN A AWAY is DEFOG, which is a five-letter word. DEFOG is a verb that means to remove fog or mist from a surface or area. It is often used in reference to car windows, as it is necessary to defog them in order to have a clear view of the road. Defogging can also be used to describe the process of removing dust, dirt, and other particles from a surface.