The most common and most likely answer to this crossword clue is the 6 letter word CLEFTS
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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 CLEFTS mean?
CLEFTS noun- An opening, fissure, or V-shaped indentation made by or as if by splitting.
- A piece made by splitting.
- A disease of horses; a crack on the band of the pastern.
- To syntactically separate a prominent constituent from the rest of the clause that concerns it, such as threat in "The threat which I saw but which he didn't see, was his downfall."