| Answer | Crossword Clue |
|---|---|
| underclay | a stratum of clay lying beneath a coal bed, often containing the roots of coal plants |
| Answer | Crossword Clue |
|---|---|
| underclay | a stratum of clay lying beneath a coal bed, often containing the roots of coal plants |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.