Strange soul in political image that's visually deceptive (15)

I believe the answer is:

opticalillusion

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'image that's visually deceptive' is the definition.
I can't tell whether this definition defines the answer.

'strange soul in political' is the wordplay.
'strange' is an anagram indicator.
'soul'+'in'+'political'='soulinpolitical'
'soulinpolitical' with letters rearranged gives 'OPTICALILLUSION'.

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I've seen this clue in The Daily Express.

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