The crossword solution for the term 'Steely Dan, E.G.' is 'DUNNO', which is a 5-letter word. Steely Dan is an American rock band formed in 1972 by Donald Fagen and Walter Becker. The band's popularity peaked in the late 1970s, with their albums 'Aja' and 'GAUCHO' becoming two of the most popular albums of the decade. They are known for their complex jazz-influenced sound and their use of sophisticated lyrics.