The most common and most likely answer to this crossword clue is the 8 letter word INCENSED
I've seen this crossword clue in Financial Times
I
N
C
E
N
S
E
D
More clues leading to the result INCENSED
- Furious as CNN somewhat pointlessly denies being involved
- Seeing red bouquet to get date
- Fumed or fuming?
- Furious as a thurible?
- Criminal sinned when stealing church’s cross
- At home, reportedly felt angry
- Popular scene played out with daughter getting angry
- Metal top removed, needs red cross
- Irate since den is demolished
- Fuming burnt gums and resins
Buddy explains!

The straight part
We know that "Furious" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case furious = incensed.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does INCENSED mean?
INCENSED verb- To anger or infuriate.
- To incite, stimulate.
- To offer incense to.
- To perfume with, or as with, incense.
- To set on fire; to inflame; to kindle; to burn.
- Enraged; infuriated; spitefully or furiously angry.