Stipulations -- or VIPs must be moved thus going north (8)

I believe the answer is:

provisos

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'stipulations' is the definition.
(I've seen this in another clue)

'vips must be moved thus going north' is the wordplay.
I cannot really see how this works, but
'thus' could be 'so' (synonyms) and 'so' is located in the answer.
This explanation may well be incorrect...

'or' is the link.

Can you help me to learn more?

(Another definition for provisos that I've seen is " Conditions or stipulations".)

I've seen this clue in The Telegraph.

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