Copy of Two Thousand and One, with music finale (5)
I believe the answer is:
mimic
'copy' is the definition.
(mimicking is a kind of copying)
'two thousand and one with music finale' is the wordplay.
'two' shows that letters should be duplicated.
'thousand' becomes 'm' (synonyms).
'and' means one lot of letters go next to another.
'one with' becomes 'i' (I can't explain this - if you can you should give a lot more credence to this answer).
'finale' suggests the final letters.
The last letter of 'music' is 'c'.
'm'+'i'='mi'
'mi' duplicated is 'mimi'.
'mimi'+'c'='MIMIC'
'of' is the link.
Can you help me to learn more?
(Other definitions for mimic that I've seen before include "Imitate, copy appearance or mannerisms" , "Ape" , "Person imitating another" , "Impersonator" , "Copy (voice, mannerisms)" .)