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Blessing has been surprisingly given to dissident group (11)

Ross

I believe the answer is:

benefaction

'blessing' is the definition.
(thesaurus)

'been surprisingly given to dissident group' is the wordplay.
'surprisingly' indicates anagramming the letters.
'given to' means one lot of letters go next to another.
'dissident group' becomes 'faction'.
'been' anagrammed gives 'bene'.
'bene'+'faction'='BENEFACTION'

'has' acts as a link.

I've seen this clue in The Times.
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