Saint fasts, stirring visionaries (10)

I believe the answer is:

fantasists

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'visionaries' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps they are linked in a way I don't understand?

'saint fasts stirring' is the wordplay.
'stirring' indicates anagramming the letters.
'saint'+'fasts'='saintfasts'
'saintfasts' is an anagram of 'FANTASISTS'.

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I've seen this clue in The Everyman puzzle in The Observer.

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