A medical practitioner returning with additional notes (4)
I believe the answer is:
coda
'with additional notes' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'a medical practitioner returning' is the wordplay.
'medical practitioner' becomes 'doc' (doc is a kind of medical practitioner).
'returning' says the letters should be written in reverse.
'a'+'doc'='adoc'
'adoc' reversed gives 'CODA'.
Can you help me to learn more?
(Other definitions for coda that I've seen before include "finish" , "Musical conclusion" , "Tailpiece" , "Closing stage" , "finale in Beethoven?" .)