Work got via proper agency (5)
I believe the answer is:
opera
'work' is the definition.
(musical work)
'via proper agency' is the wordplay.
'OPERA' is hidden within the letters.
However, I'm not sure how the hidden word is indicated.
'got' is the link.
Can you help me to learn more?
(Other definitions for opera that I've seen before include "Carmen, perhaps" , "Aida, for example" , "Drama or comedy set to music" , "Norma is one" , "Lulu, say" .)