Possible Clues:

• Harry Brown's come over strange
• Harry S . . . . . ., American president who ordered the dropping of the atom bomb
• Former US President not completely faithful chap
• President Clinton primarily a poor poet and author
• Harry S. ---, US Pres.
• Declared right person president
• The - Show, Jim Carrey film
• 1948 presidential election winner
• President whose middle initial, S, didn't stand for anything
• 'Mr. Citizen' autobiographer