The term Dixieland Clarinetist refers to a type of jazz musician who plays the clarinet. The four solutions to this crossword are Shaw (4 letters), ARTIE (5 letters), REED (4 letters), and Pete Fountain (12 letters). Shaw is a reference to the American clarinetist and bandleader, Benny Shaw, who was a major figure in the development of Dixieland jazz. ARTIE is a reference to ARTIE Shaw, an American clarinetist, composer, and bandleader who was one of the most popular musicians of the swing era. REED is a reference to Jimmy REED, an American clarinetist and saxophonist who was a major influence on the development of Dixieland jazz. Pete Fountain is a reference to Pete Fountain, an American clarinetist who was a major figure in the revival of traditional New Orleans jazz.