Crossword Genius

Psychedelic substance

Ross

I believe the answer is:

lsd

'psychedelic substance' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for lsd that I've seen before include "Old money and hallucinogenic drug" , "Pounds, shillings and pence of old" .)

I've seen this clue in The New York Times.
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