Destructive wind (7)
I believe the answer is:
tornado
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">destructive wind</span>' is the definition.<br/ ><span class="explanation-format__explanation">(a tornado is a powerful wind)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tornado that I've seen before include "RAF fighter; whirlwind" , "Donator (anag.)" , "Dreadful blow" , "This is quite a blow" , "Typhoon" .)