Change of opinion concerning front (9)

I believe the answer is:

aboutface

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'change of opinion' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'concerning front' is the wordplay.
'concerning' becomes 'about' (about can mean concerning or relating to).
'front' becomes 'face' (face is a kind of front).
'about'+'face'='ABOUTFACE'

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I've seen this clue in The Daily Express.

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