The most common and most likely answer to this crossword clue is the 5 plus 4 letter word WITCH HUNT
I've seen this crossword clue in The Guardian
W
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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 WITCH HUNT mean?
WITCH HUNT noun- A search for people believed to be using sorcery or harmful magic, especially in order to punish them.
- An attempt to find and publicly punish a group of people perceived as a threat, usually on ideological or political grounds.
- A public smear-campaign against an individual.