Crossword Genius

Supervillain Luthor (3)

Ross

I believe the answer is:

lex

'supervillain luthor' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Another definition for lex that I've seen is " Latin law".)

I've seen this clue in The Washington Post, the Universal, the L.A. Times Daily and the LA Times.
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