CD including single completely copied (6)
I believe the answer is:
cloned
'copied' is the definition.
(cloning is a kind of copying)
'cd including single completely' is the wordplay.
'including' is an insertion indicator.
'single completely' becomes 'lone' (synonyms. I am not sure about the 'completely' bit.).
'cd' going around 'lone' is 'CLONED'.
Can you help me to learn more?
(Other definitions for cloned that I've seen before include "Copied genetically" , "Produced a replica of" , "Propagated like Dolly the sheep" , "Made an identical copy of a living organism" , "eg Like Dolly the sheep" .)