Related Clues:

• Trippy letters
• The U.S. banned it in 1967
• Drug that can cause flashbacks
• It's dropped for kicks
• Burn cause
• Narc's haul
• Psychedelic of the 60's
• Hydrochloric or amino, e.g.
• Hallucination drug
• Etcher's purchase, perhaps
• Hallucinogen
• Part of DNA
• 91-Across, e.g.
• Etcher's purchase
• It may cause you to trip