Hostile speech (7)

I believe the answer is:

vitriol

(Other definitions for vitriol that I've seen before include "Vicious criticism" , "Caustic words" , "Sulphuric acid and hateful criticism" , "hostile criticism" , "Strong criticism" .)

I've seen this clue in The Sun.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.