Treat a lord with contempt in speech and make a quick exit (9)
I believe the answer is:
disappear
'exit' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for disappear that I've seen before include "walk" , "suddenly depart" , "Fly" , "Vanish, cease to be visible" , "Pass out of sight" .)