The most common and most likely answer to this crossword clue is the 6 letter word UNDONE
I've seen this crossword clue in The Daily Telegraph
U
N
D
O
N
E
More clues leading to the result UNDONE
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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 UNDONE mean?
UNDONE adjective- Not done.
- To reverse the effects of an action.
- To unfasten.
- To impoverish or ruin, as in reputation; to cause the downfall of.
- Not fastened.
- Ruined; brought to nought.