The most common and most likely answer to this crossword clue is the 10 letter word QUADRANGLE
I've seen this crossword clue in Independent
Q
U
A
D
R
A
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G
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More clues leading to the result QUADRANGLE
- Court medic feeding Queen a fish
- Square reported argument about a bike
- In court, argue against jail in speech
- Equal distribution with grand court
- Prison dispute heard in courtyard
- Gang, without leader, argue audibly in court
- Courtyardâs one of four with river aspect
- Group of team members quarrel, losing heads in courtyard
- 21 shifts taken up as doctor? Getting close
Buddy explains!

The straight part
We know that "Square" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case square = quadrangle.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 QUADRANGLE mean?
QUADRANGLE noun- A geometric shape with four angles and four straight sides; a four-sided polygon.
- A courtyard which is quadrangular.
- The buildings forming the border of such a courtyard.