Exposed a crazy dude to a bad end (7)
I believe the answer is:
denuded
'exposed' is the definition.
(thesaurus)
'a crazy dude to a bad end' is the wordplay.
'a crazy' indicates an anagram.
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'a bad' indicates anagramming the letters.
'dude' anagrammed gives 'uded'.
'end' is an anagram of 'den'.
'uded' after 'den' is 'DENUDED'.
(Other definitions for denuded that I've seen before include "Stripped" , "Laid bare" .)