The most common and most likely answer to this crossword clue is the 10 letter word AGGRESSIVE
I've seen this crossword clue in The Daily Telegraph
A
G
G
R
E
S
S
I
V
E
More clues leading to the result AGGRESSIVE
- Belligerent comic revises gag
- Showing belligerence, rages and gives out
- Rock gig’s as ever in-your-face
- Comic revises gag to be belligerent
- Crashing gears gives feeling full of hostility
- Showing anger, aggrieve oddball eating just the outer parts of sprouts
- Gives gears thrashing, like angry driver?
- A good forward-looking type, PRO out to be combative
- I’ve gone under a horse on consecutive Saturdays. That’s brutal!
- Pugnacious, troubled Sis with ‘veg rage’!
Buddy explains!
The straight part
We know that "Showing anger" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case showing anger = aggressive.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 AGGRESSIVE mean?
AGGRESSIVE adjective- Characterized by aggression; unjustly attacking; prone to behave in a way that involves attacking or arguing.
- Of heuristics, source code optimization techniques, etc.: exploiting every opportunity to be applied.
- (of a tumour or disease) That spreads quickly or extensively; virulent; malignant.