Go around effecting a reversal of opinion, etc. (9)

I believe the answer is:

turnabout

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'effecting a reversal of opinion etc' is the definition.
I can't tell whether this definition defines the answer.

'go around' is the wordplay.
'go' becomes 'turn' (turning is a kind of going).
'around' becomes 'about' (synonyms).
'turn'+'about'='TURNABOUT'

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(Other definitions for turnabout that I've seen before include "complete change of policy" , "That makes a change" , "change of heart" , "Total change of policy" .)

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