Badly angered and remaining furious (7)
I believe the answer is:
enraged
'remaining furious' is the definition.
'enraged' can be an answer for 'furious' (enraged means very angry). I'm not certain of the 'remaining' bit.
'badly angered' is the wordplay.
'badly' is an anagram indicator (letters in the wrong order).
'angered' with letters rearranged gives 'ENRAGED'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for enraged that I've seen before include "Irate" , "Maddened" , "Wild" , "Wound up" , "Incensed" .)