Famed LSD guru, smuggling in dope, died (9)
I believe the answer is:
legendary
'famed' is the definition.
(thesaurus)
'lsd guru smuggling in dope died' is the wordplay.
'lsd guru' becomes 'leary' (psychologist and drugs advocate Timothy Leary).
'smuggling in' is an insertion indicator.
'dope' becomes 'gen' (I've seen this in other clues).
'died' becomes 'd'.
'gen'+'d'='gend'
'leary' going around 'gend' is 'LEGENDARY'.
(Other definitions for legendary that I've seen before include "Fabled, celebrated" , "Well-known" , "Relating to old or mythological tales" , "Based on myth or famous for achievements (9)" , "From a fabulous traditional story" .)