Destructive wind vortex (7)
I believe the answer is:
tornado
'destructive wind vortex' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tornado that I've seen before include "Terrible storm" , "Violent whirling wind" , "A violent and destructive whirlwind" , "Road not turned in the windstorm" , "Destructive wind vortex" .)