The most common and most likely answer to this crossword clue is the 8 letter word BEGRIMED
I've seen this crossword clue in The Daily Telegraph
B
E
G
R
I
M
E
D
More clues leading to the result BEGRIMED
Buddy explains!
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 BEGRIMED mean?
BEGRIMED verb- To make something dirty; to soil.
- Dirty, soiled, grimy.