An expert fiddler? (8)
I believe the answer is:
virtuoso
This clue could be a double definition.
'an expert' is the first definition.
(virtuoso is a kind of expert)
'fiddler?' is the second definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for virtuoso that I've seen before include "Person who excels in technique, say musician" , "Highly skilled musician" , "Highly-skilled musician" , "Sour Vito may be one who excels musically" , "Genius" .)