| Answer | Crossword Clue |
|---|---|
| GRISTLE | Tough stuff in meat |
| GRISTLE | Tough meat stuff |
| strings | A tough piece of fiber in vegetables, meat, or other food, such as a tough elongated piece connecting the two halves of a bean pod |
| ASPIC | Stuff in a meat can |
| FIRE | Tough stuff to walk through |
| HARDRUBBER | Red rhubarb when cooked is very tough stuff (4,6) |
