Beastly group with info on unfinished work (8)

I believe the answer is:

chordata

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This clue might be a double definition.

'beastly group' is the first definition.
(phylum including many animal species)

'info on unfinished work' is the second definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.

'with' is the link.

Can you help me to learn more?

(Another definition for chordata that I've seen is " animals".)

I've seen this clue in The Times.

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