Wailing woman has been confused (7)
I believe the answer is:
banshee
'wailing woman' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'has been confused' is the wordplay.
'confused' indicates an anagram.
'has'+'been'='hasbeen'
'hasbeen' anagrammed gives 'BANSHEE'.
Can you help me to learn more?
(Other definitions for banshee that I've seen before include "Portent of death" , "She predicts death in Ireland" , "Wailing woman warning of a death" , "Wailing spirit that foretells death" , "Ominous wailing spirit" .)