Turned out again to have been rectified (9)
I believe the answer is:
redressed
'rectified' is the definition.
Although both the answer and definition are past participle verbs, I don't understand how they can define each other.
'turned out again to have been' is the wordplay.
I cannot really see how this works, but
'turned' could be 'dressed' (dressing is a kind of turning) and 'dressed' is located in the answer.
'again' could be 're' (prefix meaning 'again') and 're' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for redressed that I've seen before include "having gone straight" , "Changed habits" , "Given compensation" , "Remedied" , "Set right, often the balance" .)