The most common and most likely answer to this crossword clue is the 10 letter word BYSTANDERS
I've seen this crossword clue in Financial Times
B
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A
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More clues leading to the result BYSTANDERS
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 BYSTANDERS mean?
BYSTANDERS noun- A person who, although present at some event, does not take part in it; an observer or spectator.