Turning point upsetting to an eminent person (5)

I believe the answer is:

pivot

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'turning point' is the definition.
(I've seen this before)

'upsetting to an eminent person' is the wordplay.
'upsetting' says the letters should be written backwards.
'an eminent person' becomes 'vip' (VIP is an example. I am not sure about the 'eminent' bit.).
'to'+'vip'='tovip'
'tovip' backwards is 'PIVOT'.

Can you help me to learn more?

(Other definitions for pivot that I've seen before include "Point about which something turns" , "Central turning point" , "Key figure" , "Something of central importance" , "Fulcrum" .)

I've seen this clue in The Globe and Mail.

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