Related Clues:

• Cleaner's challenge
• See 35-Down
• When doubled, a dance
• Stockbroker's freebie
• Cutting tool
• Push, maybe
• Hardly a neat house
• See 21-Across
• Skirmish
• Lizzie Borden used one
• Rhubarb
• Slop spot
• 'The dapple in the eighth,' e.g.
• Channel
• Bear's order, on Wall Street