Related Clues:

• Contaminated with disease-causing bacteria
• Empty cesspit into such a tank?
• Very malicious
• Poisonous, as waste
• Like chocolate, to dogs
• Household tank
• Britney Spears hit with the lyric "A guy like you should wear a warning"
• 2004 Britney Spears hit
• Type of tank cleaned initially after the first of the month
• Infected with bacteria
• Harmful, poisonous
• Mind about old football team's foul
• (Of snake) injecting poison
• Malevolent archdeacon, little old creature coming to premature end
• (Of wound) infected