The most common and most likely answer to this crossword clue is the 10 letter word PLAGIARISM
I've seen this crossword clue in The Daily Telegraph
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More clues leading to the result PLAGIARISM
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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 PLAGIARISM mean?
PLAGIARISM noun- Copying of another person's ideas, text or other creative work, and presenting it as one's own, especially without permission; plagiarizing.
- Text or other work resulting from this act.
- The instance of plagiarism.