The term 'Barrel Support' can be summarized by the crossword solution 'STAVE'. A STAVE is a narrow strip of wood that is used to form the sides of a barrel. The staves are held together by metal hoops, and the barrel is sealed with a lid or plug. Barrels are commonly used for storing liquids, such as wine, beer, and oil, and for shipping goods. Staves provide strength and stability to the barrel, allowing it to hold its shape and contents.