April's stormy wind (6)
I believe the answer is:
spiral
'wind' is the definition.
(I know that spiral is a more specific form of the action the wind)
'april's stormy' is the wordplay.
'stormy' indicates an anagram (stormy suggests disruption).
'aprils' anagrammed gives 'SPIRAL'.
(Other definitions for spiral that I've seen before include "Shape of coil or helix" , "Winding curve" , "Sir, pal inds in continuous loops" , "Whorl" , "Progressive rise of prices and wages" .)