The most common and most likely answer to this crossword clue is the 8 letter word FO’C’SLE
I've seen this crossword clue in The Guardian
F
O
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€
™
C
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€
™
S
L
E
Buddy explains!

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 FO’C’SLE mean?
FO’C’SLE noun- Forecastle.