Possible Clues:

• Old King Cole was a ..... old soul
• May be like to do wrong in my surroundings
• One of Frodo's companions
• Joyous; tipsy (colloq.)
• Jolly and gay
• Possessively, I go astray in causing laughter
• Yours truly's admitting sin, producing laughter
• In high spirits
• Like the month of May?
• My, how happy to be about to do wrong!