The most common and most likely answer to this crossword clue is the 5 letter word GATED
I've seen this crossword clue in The Sunday Telegraph
G
A
T
E
D
More clues leading to the result GATED
- With wicket thus bats on freely – at Edgbaston?
- Worried trapped in empty ground with barrier
- Banned from university degree, receiving cheers when that’s reversed
- Georgia and Edward confined to school
- Kept in school and given all the extra duties, initially
- Attendance down, at first, restricted to college
- Secured but assembled without her
- Secured old hat first daughter discarded for good
- Having a barrier makes one irritated — not right
- The game’s up! Edward’s confined to school
Buddy explains!

The straight part
We know that "Kept in school" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kept in school = gated.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 GATED mean?
GATED verb- To keep something inside by means of a closed gate.
- To punish, especially a child or teenager, by not allowing them to go out.
- To open a closed ion channel.
- To furnish with a gate.
- To turn (an image intensifier) on and off selectively as needed, or to avoid damage. See autogating.
- Capable of being switched on and off (normally by means of a signal).
- Have a gate or other restricted access.