| Rating | Solver | Clue |
|---|---|---|
| ARMOUR | Protective covering | |
| AWNING | Protective covering | |
| TARP | Waterproof protective covering | |
| EXOSKELETON | External protective covering | |
| MULCH | Protective covering of rotting vegetable matter | |
| ENAMEL | Even a melon has a hard protective covering | |
| HYDROPHYLLIUM | One of the flat, leaflike, protective zooids, covering other zooids of certain Siphonophora. | |
| Any hard protective covering of an animal, as the scales and plates of reptiles, shell of a lobster, etc. | ||