He produced nocturnes with phonic variation
I believe the answer is:
chopin
'he produced nocturnes' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'phonic variation' is the wordplay.
'variation' is an anagram indicator.
'phonic' with letters rearranged gives 'CHOPIN'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for chopin that I've seen before include "Double centenarian" , "Polish composer who had affair with George Sand" , "Frederic ......, 19th century Polish composer, mostly for piano" , "Polish virtuoso composer" , "Great Polish composer of phonic kind" .)