Related Clues:

• Irksome sort
• Gripe constantly
• Troublesome insect
• No Derby contender
• Obnoxious person
• Annoy repeatedly
• Decrepit horse
• 10 Across or 49 Across
• Flea, e.g.
• Sitter's challenge
• Pain in the butt
• Xanthippe, e.g.
• Don't bet on it
• Mole, e.g.
• Annoying type