Storm created by Shakespeare (7)
I believe the answer is:
tempest
This clue is a double definition.
'storm' is the first definition.
(I know that storm can be written as tempest)
'created by shakespeare' is the second definition.
(I've seen this before)
(Other definitions for tempest that I've seen before include "Violent Shakespearian storm" , "Shakesperian storm" , "Wild storm" , "A great storm of wind and rain" , "violent agitation" .)