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This selection produced all sorts of creatures (7)

Ross

I believe the answer is:

natural

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'this selection' is the definition.
(synonyms)

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(Other definitions for natural that I've seen before include "Unvarnished" , "Expected - appropriate - artless" , "Normal; off-white" , "Unaffected; off-white" , "Not disguised" .)

I've seen this clue in The Guardian.
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