Sentence:  Vorónezh: Ovid thrusts abruptly wide / the ice-locked shutters, discommodes his lyre /  to Caesar's harbingers. Interrogation, / whatever is most feared. Truth's fatal vogue, / sad <WSD>carnifex</WSD>, self-styled of blood and wax. 
Meaning of the word marked with <WSD> tags:  An executioner.