Misled and led dude astray (7)
I believe the answer is:
deluded
'misled' is the definition.
(I've seen this before)
'led dude astray' is the wordplay.
'astray' indicates an anagram.
'led'+'dude'='leddude'
'leddude' with letters rearranged gives 'DELUDED'.
'and' acts as a link.
(Other definitions for deluded that I've seen before include "Deceived into false belief" , "Holding false beliefs" , "Deceived or misled" , "hoodwinked" , "Duped or misled" .)