The most common and most likely answer to this crossword clue is the 9 letter word PROSCRIBE
I've seen this crossword clue in The Guardian
P
R
O
S
C
R
I
B
E
More clues leading to the result PROSCRIBE
- Condemn act of piracy in plain language
- . In favour of writer’s ban
- Condemn writer who works for money
- Outlaw writing about copy
- Ostracise professional writer
- In favour of writer exposing outlaw
- Ban expert writer
- Ban cheat in writing
- Denounce writing that includes plagiarism
- Ostracise writer after brief support
Buddy explains!

The straight part
We know that "Condemn" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case condemn = proscribe.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 PROSCRIBE mean?
PROSCRIBE verb- To forbid or prohibit.
- To denounce.
- To banish or exclude.