Like controversial verses as written about a function (7)

I believe the answer is:

satanic

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But I can't explain it at all! Could you help me understand?

(Other definitions for satanic that I've seen before include "Like the Devil" , "Relating to the devil" , "Demonic" , "like Mephisto" , "Diabolical" .)

I've seen this clue in The Times.

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