Related Clues:

• Does it grow in the mouth or in the creeper?
• Is 'e emaciated and black?
• Is 'e black and thin?
• It grows in water, in a manner of speaking, after a century
• This build-up in the water takes a century, in a manner of speaking
• That's what comes from being long in the tooth
• Are shortly in the fuel from the bottom of the sea
• Is 'e thin but black and hard?
• After a century, in a manner of speaking, it might make an island
• Is 'e both thin and black? It would sound so
• One is long in the tooth
• See, it's spoken for one sort of island
• Is 'e skinny and black?
• What's in mine are shortly all that's in 13 across
• See how spoken this is underwater