Fish and meat eater (5)

I believe the answer is:

sprat

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'fish' is the definition.
(sprat is a kind of fish)

I don't understand how the remainder of the clue works.

(Other definitions for sprat that I've seen before include "chap giving richer course material to the Dutch" , "Herring's smaller relative" , "Mackerel bait?" , "Small fish, sardine, say" , "Parts (anag.)" .)

I've seen this clue in The Globe and Mail.

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