Cut out such fuss - it's just a storm! (7)
I believe the answer is:
tornado
'storm' is the definition.
(type of weather)
'cut out such fuss' is the wordplay.
'cut out such' becomes 'torn' (I can't justify this - if you can you should believe this answer much more).
'fuss' becomes 'ado' (synonyms).
'torn'+'ado'='TORNADO'
'it's just a' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for tornado that I've seen before include "Violent rotating windstorm" , "Destructive wind vortex" , "Donator of fierce wind" , "Dreadful blow" , "Whirling windstorm" .)