Related Clues:

• Etcher's need
• Tripper's turn-on
• See 14-Across
• Woodstock supply
• Bitter
• See 17-Down
• Hallucination cause
• A turn-on
• It may make you see things
• Mordant
• Rock variety
• Alternative to mushrooms
• Bit of high jinks
• Kind of wit or test
• See 26-Down