Related Clues:

• Spread dirty substance, try to damage reputation
• October surprise, often
• Lab specimen
• Microscope-slide sample
• Apply lipstick unsteadily
• Mascara problem
• Printing problem
• Slur - may be studied microscopically
• Bedaub with oily stuff - defame
• Slander — tissue sample used for testing
• Slanderous denigration of character
• Damage the reputation of
• Returns manuscript to listener to drag through mud
• What decrepit windshield wipers do
• Negative campaigner's tactic