Crossword Genius

Reef material (5)

Ross

I believe the answer is:

coral

'reef material' is the definition.
(material making up a coral reef)

This is all the clue.

(Other definitions for coral that I've seen before include "Basis of reefs" , "Tiny animal forming reef" , "Marine substance, often forming reefs" , "Basic material of South Sea islands" , "Hard substance on the seabed" .)

I've seen this clue in the King Feature Syndicate, The Telegraph and The Star Tribune.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.