The most common and most likely answer to this crossword clue is the 7 plus 6 letter word GENERAL STRIKE
I've seen this crossword clue in The Guardian
G
E
N
E
R
A
L
S
T
R
I
K
E
More clues leading to the result GENERAL STRIKE
- When everyone's out, officers will take children's plaything
- Everyone was out in this officer's three-wheeler
- Commander leading attack when everyone's out
- Army officer hit in all-out action?
- Top officer with small vehicle in which nobody works
- When everyone’s out of kilter knight agrees to change
- When everything stops, force leaders to take unconventional transport
- Soldiers needing vehicle when everyone’s out
- Comprehensive hit when everyone refuses to work
- Take lingerers apart in a situation wreaking havoc with the economy?
Buddy explains!
The straight part
We know that "When everything stops" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case when everything stops = general strike.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.