Modern painters rendered Trappist so (3,7)

I believe the answer is:

pop artists

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'modern painters' is the definition.
The definition suggests a plural noun which matches the answer.

'rendered trappist so' is the wordplay.
'rendered' indicates anagramming the letters (letters rendered in a new form).
'trappist'+'so'='trappistso'
'trappistso' is an anagram of 'POP ARTISTS'.

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I've seen this clue in The Guardian.

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