The crossword solution for the term 'LES MIZ SET' is 'SEWER', which is a five-letter word. A SEWER is a system of pipes and drains that carries wastewater and surface runoff away from buildings and other structures. Sewers are typically located underground and are used to transport wastewater to treatment plants, where it is processed and released into the environment. Sewers are an important part of any city's infrastructure, as they help keep the environment clean and safe.