A canvas covering is a type of protective covering that can be used for a variety of purposes. The two most common crossword solutions for this term are 'tarp' and 'PAINT'. A tarp is a large, waterproof sheet of plastic or canvas that is used to cover items and protect them from the elements. PAINT is a liquid coating that is applied to a surface to provide protection and decoration. Both of these materials can be used to create a canvas covering that will protect whatever it is covering from the elements and other damage.