The most common and most likely answer to this crossword clue is the 9 letter word FORBIDDEN
I've seen this crossword clue in The Guardian
F
O
R
B
I
D
D
E
N
More clues leading to the result FORBIDDEN
- . How the US voted encompasses Donald’s number one taboo
- Banned democratic dons in support of president
- In favour of retreat after offer is vetoed
- Supporting duke beset by old vice that’s taboo
- Contraband for bishop concealed without opening
- In favour of effort, study taboo
- Democrat in backing 24, out of bounds
- Pro offer Ned rejected is not allowed
- Foreign Office ordered to tackle Republican taboo
- Not allowed in Bedford after work
Buddy explains!
The straight part
We know that "out of bounds" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case out of bounds = forbidden.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 FORBIDDEN mean?
FORBIDDEN verb- To disallow; to proscribe.
- (ditransitive) To deny, exclude from, or warn off, by express command.
- To oppose, hinder, or prevent, as if by an effectual command.
- To accurse; to blast.
- To defy; to challenge.
- Not allowed; specifically disallowed.