Storm disrupted Blur set (7)
I believe the answer is:
bluster
'storm' is the definition.
(thesaurus)
'disrupted blur set' is the wordplay.
'disrupted' indicates an anagram.
'blur'+'set'='blurset'
'blurset' is an anagram of 'BLUSTER'.
(Other definitions for bluster that I've seen before include "Empty boasting" , "Braggadocio" , "Swagger" , "Swaggering language" , "Show off" .)