Smooth-talking, plausible (4)

I believe the answer is:

glib

(Other definitions for glib that I've seen before include "Fluent and plausible" , "Insincerely fluent" , "Casually fluent" , "Smooth-tongued" , "Fluent but insincere" .)

I've seen this clue in The Guardian.

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.