Huge local inn manufactured mind-altering substance (12)

I believe the answer is:

hallucinogen

I'm a little stuck... Click here to teach me more about this clue!

'mind-altering substance' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.

'huge local inn manufactured' is the wordplay.
'manufactured' indicates anagramming the letters.
'huge'+'local'+'inn'='hugelocalinn'
'hugelocalinn' is an anagram of 'HALLUCINOGEN'.

Can you help me to learn more?

(Other definitions for hallucinogen that I've seen before include "Trip-inducing substance" , "Mind-altering drug" , "Mind-bending drug" , "mind-blowing" , "Drug inducing unreal perceptions" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.