The term SMART FELLOW can be broken down into three crossword solutions: ALECK (5 letters), ALEC (4 letters), and GENIUS (6 letters). ALECK is a variant of the name ALEC, which is derived from the Greek name Alexander, meaning 'defender of men'. ALEC is also a variant of the name ALEC, which is derived from the same Greek root. GENIUS is a Latin word meaning 'INTELLECT' or 'CLEVERNESS'. Taken together, these three words describe a person who is intelligent, clever, and a defender of others.