The most common and most likely answer to this crossword clue is the 5 plus 4 letter word FRONT PAGE
I've seen this crossword clue in The Guardian
F
R
O
N
T
P
A
G
E
Buddy explains!
The straight part
We know that "It may be held when something breaks suddenly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it may be held when something breaks suddenly = front page.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 FRONT PAGE mean?
FRONT PAGE noun- The first, and initially visible, page of a publication.
- So important as to warrant being put on the front page of newspapers.
- Which appears on the front page of a publication.