Answer: lsd

AnswerCrossword Clue
LSDTrip-taker's agent?
LSDPeople tripped on it at Woodstock
LSD"Acid" used in some trips
LSD'60s hallucinogen
LSDAcid, so to speak
LSDTimothy Leary drug
LSD'60s "trip" inducer
LSD'60s hallucinogenic
LSDIt was dropped in the '60s
LSDLeary's drug
LSDTimothy Leary turn-on
LSD'60s drug
LSDDr. Leary used it on some trips
LSDLeary tripped on it
LSD"Dropped" substance
LSD'60s trip starter, initially
LSD'60s tripper's substance
LSDLeary's turn-on
LSDTrip producer?
LSDDrug used in old CIA mind-control experiments
LSDDrug for tripping
LSDCause of a trip
LSDRequirement to enjoy prog rock, they say
LSDBrit. monetary system
LSDHallucinogen
LSDAcid
LSDHallucinogen, for short
LSDHallucinogen letters
LSD"Acid"
LSD1960s hallucinogen
LSDTrip-taking cause
LSDIt greatly improves Animal Collective records
LSDTrip facilitator, for short
LSDBlotter-paper application
LSDDrug derived from ergot
LSDDrug advocated by Leary
LSDDrug advocated by Timothy Leary
LSDLong trips are taken on it
LSDSomething you might trip on
LSDA raver might drop it