The most common and most likely answer to this crossword clue is the 8 letter word PREVENTS
I've seen this crossword clue in Financial Times
P
R
E
V
E
N
T
S
More clues leading to the result PREVENTS
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 PREVENTS mean?
PREVENTS verb- To stop (an outcome); to keep from (doing something).
- To take preventative measures.
- To come before; to precede.
- To outdo, surpass.
- To be beforehand with; to anticipate.