The most common and most likely answer to this crossword clue is the 7 letter word CYCLONE
I've seen this crossword clue in Independent
C
Y
C
L
O
N
E
More clues leading to the result CYCLONE
- Carbon copy covering unknown meteorological event
- Storm about in circle
- Vacant celebrity copy causing storm
- Storm over replica Twombly
- Bowling during series creates storm in Sri Lanka
- Working through period of
- Violent storm happening in recurrent series
- Evacuated city, double big blow?
- Nothing short of evasive on e.g. Dolly’s depression
- Revolution covering working with meteorological phenomenon
Buddy explains!

The straight part
We know that "storm" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case storm = cyclone.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does CYCLONE mean?
CYCLONE noun- (broad sense) A weather phenomenon consisting of a system of winds rotating around a center of low atmospheric pressure
- (narrow sense) Such weather phenomenon occurring in the South Pacific and Indian Ocean
- A low pressure system.
- The more or less violent, small-scale circulations such as tornadoes, waterspouts, and dust devils.
- A strong wind.
- A cyclone separator; the cylindrical vortex tube within such a separator