Yes, mantle is a Scrabble word!

Verb

1. Spread over a surface, like a mantle

2. Cover like a mantle

Noun

1. The cloak as a symbol of authority

2. United States baseball player (1931-1997)

3. The layer of the earth between the crust and the core

4. Anything that covers

5. (zoology) a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell

6. Shelf that projects from wall above fireplace

7. Hanging cloth used as a blind (especially for a window)

8. A sleeveless garment like a cloak but shorter