Related Clues:

• Oscar Madison, notably
• Messy fellow
• Grungy guy
• Slob
• Neatnik's bane
• Neatnik's nightmare
• Poor fellow?
• Slovenly one
• Creator of a mare's nest
• Napkin eschewer, say
• One who leaves too many things out
• His stuff is all over the place
• Neatnik's antithesis
• Disheveled dude
• Person with no hang-ups?