Related Clues:

• Blurred mark
• Smeared blot
• Bedaub with oily stuff - defame
• Slander — tissue sample used for testing
• Soil — daub
• 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
• Bit of ugly politics
• Mark square with wet dirt for example in return
• Dirty political attack
• Ruin, as calligraphy
• Spread generously