The most common and most likely answer to this crossword clue is the 9 letter word PHOTOBOMB
P
H
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B
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B
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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 PHOTOBOMB mean?
PHOTOBOMB noun- An act of photobombing.
- A photo containing someone or something that is photobombing.
- To unexpectedly appear in a photograph, especially so as to ruin the picture.