No longer working, Diana's dues are sorted out (7)
I believe the answer is:
disused
'out' is the definition.
(thesaurus)
'no longer working diana's dues are sorted' is the wordplay.
I cannot really see how this works, but
'diana's' could be 'dis' (Di is short for Diana) and 'dis' is present in the answer.
an anagram of 'dues' is 'used' which is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for disused that I've seen before include "No longer of service" , "Derelict" , "No longer observed or practised" , "Eg, like abandoned railways" , "Idle" .)