Related Clues:
- Sulfuric ___
- Certain psychedelic
- Subject of secret Cold War military experiments
- Nitric ___
- '60s psychedelic drug
- 'Turn on, tune in, drop out' substance
- Certain illegal turn-on
- Etching stuff
- It's not basic
- Cause of some '60s trips
- Hallucinatory drug
- It may be dropped when one trips
- Tab for a trip?
- Need for 41-Across
- Biological food processor