The term 'like chimneys' can be summarized by two crossword solutions: SOOTY (5 letters) and flued (5 letters). SOOTY is an adjective that describes something covered in soot, which is a black powdery substance made up of carbon particles that is produced when something is burned. Flued is an adjective that describes something with a flue, which is a duct or pipe that carries smoke from a fireplace or furnace to the outside of a building. Therefore, the term 'like chimneys' can be used to describe something that is covered in soot and has a flue, similar to a chimney.