Anger and fury about dreadful trait (8)
I believe the answer is:
irritate
'anger' is the definition.
(thesaurus)
'fury about dreadful trait' is the wordplay.
'fury' becomes 'ire' (I've seen this before).
'about' indicates putting letters inside.
'dreadful' indicates anagramming the letters.
'trait' anagrammed gives 'ritat'.
'ire' enclosing 'ritat' is 'IRRITATE'.
'and' acts as a link.
(Other definitions for irritate that I've seen before include "Vex, aggravate" , "Vex or chafe" , "Needle" , "Anger, annoy" , "bug" .)