The term WINEMAKING WASTE is composed of two words, the first being 'Winemaking' and the second being 'WASTE'. The crossword solution for this term is LEES, which is a type of sediment that forms during the winemaking process. This sediment is made up of dead yeast cells, proteins, tartrates, and other organic compounds that are left over from the fermentation process. LEES is often removed from the wine before bottling, but can also be used to add flavor and complexity to certain wines.