Live streaming company missing introduction from Ten Hag (5)

I believe the answer is:

witch

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'hag' is the definition.
(I know that hag can be written as witch)

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

(Other definitions for witch that I've seen before include "... and magician" , "Female member of coven" , "strange woman" , "charming female" , "One supposed to have magical powers" .)

I've seen this clue in The Independent.

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