Related Clues:

• Unsavory character
• Fly, e.g.
• Annoying person
• ''The Wind in the Willows'' character
• Ladybird, for one
• Dog command
• Nerd's kin
• A low-down dirty dog
• Surly sort
• Leader of the mongrel horde?
• Silly person
• It takes grubs for grub
• Early bird's breakfast
• See 83-Down
• Fly catcher?