Feverish, furious (8)
I believe the answer is:
frenzied
I believe this clue is a double definition.
'feverish' is the first definition.
(I've seen this in another clue)
'furious' is the second definition.
(thesaurus)
(Other definitions for frenzied that I've seen before include "Frenetic" , "Violently agitated" , "Wildly excited or agitated" .)