The most common and most likely answer to this crossword clue is the 9 letter word BLOODSHOT
I've seen this crossword clue in The Daily Telegraph
B
L
O
O
D
S
H
O
T
More clues leading to the result BLOODSHOT
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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 BLOODSHOT mean?
BLOODSHOT adjective- (of the eyes) reddened and inflamed because of congested blood vessels