The most common and most likely answer to this crossword clue is the 9 letter word HOMOPHONE
I've seen this crossword clue in The Guardian
H
O
M
O
P
H
O
N
E
More clues leading to the result HOMOPHONE
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 HOMOPHONE mean?
HOMOPHONE noun- A word which is pronounced the same as another word but differs in spelling or meaning or origin.
- A letter or group of letters which are pronounced the same as another letter or group of letters.