Experience hallucinations on drug locally? That's nonsense! (5)
I believe the answer is:
tripe
'that's nonsense' is the definition.
(thesaurus)
'experience hallucinations on drug' is the wordplay.
'experience' becomes 'trip' (I have seen 'Hallucinatory experience' mean 'trip' so perhaps 'experience' could also mean 'trip').
'hallucinations on drug' becomes 'e' (I can't explain this - if you can you should believe this answer much more).
'trip'+'e'='TRIPE'
'locally?' is the link.
This may not be correct. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for tripe that I've seen before include "Ruminant's stomach lining" , "Swallowed" , "Edible lining of cow's stomach - rubbish" , "Pants" , "Rubbish (edible, maybe)" .)