Starred in movies, they mean big trouble (4)

I believe the answer is:

wars

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for wars that I've seen before include "See 8" , "Armed conflicts against enemies" , "Battles" , "- - of the Roses" .)

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.