The term ART EXPERTISE can be summarized as the ability to demonstrate a high level of knowledge and skill in the field of art. The crossword solution for this term is VIRTU, which is derived from the Latin word virtus, meaning excellence or virtue. This term is often used to describe the mastery of an artist in their chosen field, such as painting, sculpture, or photography. Art expertise requires a deep understanding of the history, techniques, and materials used in the creation of art. It also involves the ability to recognize and appreciate the aesthetic qualities of a work of art.