The most common and most likely answer to this crossword clue is the 12 letter word DEFENESTRATE
I've seen this crossword clue in Independent
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More clues leading to the result DEFENESTRATE
Buddy explains!
The straight part
We know that "Break window with people?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case break window with people? = defenestrate.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 DEFENESTRATE mean?
DEFENESTRATE verb- To eject or throw (someone or something) from a window; compare transfenestrate.
- To throw out; to remove or dismiss (someone) from a position of power or authority.
- To remove a Windows operating system from a computer.