People from overseas setting signor free? (10)

I believe the answer is:

foreigners

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'people from overseas setting signor free?' is the definition.
'foreigners' can be an answer for 'people' (foreigner is a kind of person). I am not certain of the 'from overseas setting signor free?' bit.

'setting signor free?' is the wordplay.
'setting' indicates an anagram.
'signor'+'free'='signorfree'
'signorfree' with letters rearranged gives 'FOREIGNERS'.

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