An ale vessel is a type of container used to store and serve beer. The four crossword solutions for this term are TANKARD (7 letters), CASK (4 letters), FLAGON (6 letters), and STEIN (5 letters). A TANKARD is a large, cylindrical mug with a handle, usually made of pewter or silver. A CASK is a barrel-shaped container made of wood or metal, often used to store and transport beer. A FLAGON is a large, flat-bottomed container with a handle and a spout, typically made of metal or ceramic. Finally, a STEIN is a large mug with a handle, usually made of stoneware or earthenware.