Man created by cartoonist doing a semi-flip (6)

I believe the answer is:

sidney

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'cartoonist doing a semi-flip' is the definition.
I can't judge whether this definition defines the answer.

'man created by' is the wordplay.
'man' becomes 'sid'.
'created by' becomes 'ney' (I am not sure about this - if you are sure you should believe this answer much more).
'sid'+'ney'='SIDNEY'

Can you help me to learn more?

(Other definitions for sidney that I've seen before include "Sir Philip --, English poet" , "Disney in Oz?" , "Disney over in Australia" .)

I've seen this clue in The Telegraph.

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