The most common and most likely answer to this crossword clue is the 8 letter word BEFOULED
I've seen this crossword clue in The Guardian
B
E
F
O
U
L
E
D
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 BEFOULED mean?
BEFOULED verb- To make foul; to soil; to contaminate, pollute.
- (specifically) To defecate on, to soil with excrement.
- To stain or mar (for example with infamy or disgrace).
- To entangle or run against so as to impede motion.