Cyclone (9)
There are a few possibilities for this:
whirlwind
'cyclone' is the definition.
(I know that tornado is a type of cyclone)
This is the entire clue.
(Other definitions for tornado that I've seen before include "Destructive weather" , "Dreadful blow" , "Typhoon" , "Whirling windstorm" , "A violent and destructive whirlwind" .)
'cyclone' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for tempest that I've seen before include "commotion" , "Test MEP (anag.)" , "Violent Shakespearian storm" , "Shakespeare play with storm scene" , "Big blow" .)
'cyclone' is the definition.
(I know that typhoon is a type of cyclone)
This is the entire clue.
(Other definitions for typhoon that I've seen before include "Pacific hurricane" , "(Chinese) storm" , "Violent cyclonic storm" , "Storm, cyclone" , "Tropical cyclone" .)
'cyclone' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for whirlwind that I've seen before include "Mass of air in violent spiral motion" , "Energetic person" , "kind of romance?" , "(Of a romance) rapidly sweeping you off your feet?" , "E.g. a dust devil" .)