Is it too darn windy? (7)
I believe the answer is:
tornado
'is it' is the definition.
I can't tell whether this definition defines the answer.
'too darn windy?' is the wordplay.
'windy?' indicates an anagram (I've seen 'windy' mean this (windy suggests disruption)).
'too'+'darn'='toodarn'
'toodarn' anagrammed gives 'TORNADO'.
(Other definitions for tornado that I've seen before include "A violent and destructive whirlwind" , "Violent twister" , "Strong wind" , "Typhoon" , "Whirling storm" .)