Course about PR by new European business person (12)

I believe the answer is:

entrepreneur

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'business person' is the definition.
(I know that entrepreneur is a type of business person)

'course about pr by new european' is the wordplay.
'course' becomes 'entree' (course of a meal).
'about' means one lot of letters goes inside another.
'by new european' becomes 'neur' (I can't explain this - if you can you should believe this answer much more).
'entree' going around 'pr' is 'entrepre'.
'entrepre'+'neur'='ENTREPRENEUR'

Can you help me to learn more?

(Other definitions for entrepreneur that I've seen before include "Business risk-taker" , "Business originator" , "Risk taker" , "Businessman making money by risk and initiative" , "impresario" .)

I've seen this clue in The Times.

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