Squalls (6)
I believe the answer is:
storms
'squalls' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for storms that I've seen before include "They occur when winds reach force 10" , "Outbreaks of violent weather" , "Weather periods when winds are force 11" , "Violent weather conditions" , "French Mediterranean coast" .)