Crossword Genius

Dubiously-required double protection (4,3,6)

Ross

I think it could be either:

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4

4,3,6

belt and braces

(Other definitions for belt and braces that I've seen before include "Way of giving double chance of success" , "Policy of twofold security?" , "Giving double security" , "Providing double security" , "Doubly safe option" .)

I've seen this clue in The Guardian.
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