Possible Clues:

• Like Oscar of 'The Odd Couple' or 'Sesame Street'
• Like Oscar of "The Odd Couple" or "Sesame Street"
• ___ bun (unkempt hairstyle)
• Distasteful to a neat freak
• Opposite of tidy
• Unkempt as footballer Lionel we hear
• Jumbled
• Rather inconvenient
• In need of cleanup
• Far from well kept