What the wind did in a terrible way (4)
I believe the answer is:
blew
'what the wind did' is the definition.
(the wind blows)
'in a terrible way' is the wordplay.
'in' indicates a hidden word.
'BLEW' is hidden in the letters of 'terrible way'.
(Other definitions for blew that I've seen before include "Sounded (a whistle)" , "Tooted" , "Played (a horn)" , "Bungled (an opportunity)" , "Sounded (a horn)" .)