Crossword Genius

Swear (to) (6)

Ross

I believe the answer is:

attest

'swear to' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for attest that I've seen before include "Confirm to be true" , "Corroborate" , "Bear formal witness to, give evidence" , "Declare to be true or genuine" , "Provide firm evidence" .)

I've seen this clue in the Universal, the LA Times, the King Feature Syndicate, The New York Times and the Newsday.
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