Related Clues:

• Chemical used to make biodiesel
• Drano ingredient
• Digestive fluid
• Folic ___
• Inspiration for Hunter S. Thompson
• See 89-Across
• Timothy Leary dropped it
• Breakdown cause
• Citric __
• Sharp, like wit
• Caustic soap stuff
• NaOH
• Strong solution of sodium
• "Maalox moment" cause
• Soapmaker's supply