No parking in rise is policy reversal (1-4)

I believe the answer is:

u-turn

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'policy reversal' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

(Other definitions for u-turn that I've seen before include "180 degrees change of direction" , "drastic change" , "Complete reversal of direction or policy" , "Sudden reversal" , "Sharp reversal of direction" .)

I've seen this clue in The Sun.

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