The most common and most likely answer to this crossword clue is the 6 letter word BLOODY
I've seen this crossword clue in The Times
B
L
O
O
D
Y
More clues leading to the result BLOODY
- Look into corpse covered in gore
- Look into organised group intending to be obstructive
- Emphatically hoping for children to change sides
- Extremely cruel
- Flaming, as red
- Cruel temperament, variable
- Gory corpse has little oedema initially
- Take a dekko into the corpse ... it's gory
- See inside carcass — it’s gory
- Look into organisation that’s violent
Buddy explains!

The straight part
We know that "covered in gore" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case covered in gore = bloody.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 BLOODY mean?
BLOODY verb- To draw blood from one's opponent in a fight.
- To demonstrably harm the cause of an opponent.
- Covered in blood.
- Characterised by bloodshed.
- Used as an intensifier.
- Badly behaved; unpleasant; beastly.
- (intensifier) Used to express anger, annoyance, shock, or for emphasis.
- (casual) bloody mary