Frenzied woman made an error (6)
I believe the answer is:
'frenzied woman' is the definition.
(I've seen this in another clue)
'made an error' is the wordplay.
'error' indicates anagramming the letters.
'madean' is an anagram of 'MAENAD'.
(Other definitions for maenad that I've seen before include "A raging woman, once a follower or Dionysus" , "Name da for a fierce woman" , "Wild woman follower of Dionysus" , "Bacchante" , "Woman possessed" .)