Work to arrest a corrupt diva (5,4)
I believe the answer is:
opera star
'diva' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'work to arrest a corrupt' is the wordplay.
'work' becomes 'op' (short for opus).
'to' says to put letters next to each other.
'corrupt' indicates an anagram (a corrupted form).
'arrest'+'a'='arresta'
'arresta' is an anagram of 'erastar'.
'op'+'erastar'='OPERA STAR'
Can you help me to learn more?
(Other definitions for opera star that I've seen before include "Pavarotti, for example" , "Placido Domingo" .)