They're silly but not witless (5)
I believe the answer is:
twits
If this is the answer I cannot explain how the clue works.
Can you help me to learn more?
(Another definition for twits that I've seen is " Taunts; idiots".)
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.