The most common and most likely answer to this crossword clue is the 9 letter word RESTRAINT
I've seen this crossword clue in The Guardian
R
E
S
T
R
A
I
N
T
More clues leading to the result RESTRAINT
- Remain outside school control
- Control what teacher does in time off work
- Moderation and discipline seen in others
- Retinue has to remain outside, holding back
- Wet weather during break time is a limitation
- Others exercise inside, showing self-control
- Break outside school, as a sort of discipline
- Others rave about one’s self-control
- Tutor in break makes check
- Reserve shower possibly during leisure time
Buddy explains!
The straight part
We know that "a sort of discipline" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a sort of discipline = restraint.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 RESTRAINT mean?
RESTRAINT noun- Something that restrains, ties, fastens or secures
- Control or caution; reserve