Related Clues:

• It was dropped at Woodstock
• Trip provider?
• Bases' counterparts
• Base's counterpart
• Lab collections
• Digestive fluid
• Lab hazards
• Folic ___
• Inspiration for Hunter S. Thompson
• See 89-Across
• Timothy Leary dropped it
• Breakdown cause
• Low-pH compounds
• Citric __
• Sharp, like wit