Creature modified by some scientists (6)

I believe the answer is:

insect

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'creature' is the definition.
(insect is a kind of animal)

I don't understand the remainder of the clue.

(Other definitions for insect that I've seen before include "Eg, beetle or bee" , "A fly, for instance" , "fly, perhaps" , "Cricket perhaps" , "E.g. cricket" .)

I've seen this clue in the Evening Standard.

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