The most common and most likely answer to this crossword clue is the 9 letter word MADREPORE
M
A
D
R
E
P
O
R
E
More clues leading to the result MADREPORE
Buddy explains!
The straight part
We know that "coral" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case coral = madrepore.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 MADREPORE mean?
MADREPORE noun- A coral of the genus Madrepora or of the larger group Madreporaria.
- Any stony coral.