Black-and-white predator (4)

I believe the answer is:

'black-and-white predator' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for orca that I've seen before include "swimmer in black and white" , "Massive killer" , "Marine creature" , "School killer" , "Large mammal" .)

I've seen this clue in the LA Times and the Newsday.

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