Possible Clues:

• Ham and ___ (average Joe)
• Ham-and-___ (average Joe)
• Ham-and- -- (bum)
• Certain Halloween vandal
• Ham-and-___ (incompetent sort)
• Moth which constructs tentlike webs
• Certain Halloween mischief maker
• Tree moth
• Ham-and-___ (mediocre boxer)
• Angry trick-or-treater, perhaps