| Clue | Length | Answer |
|---|---|---|
| Hard as nails | 5 letters | solid |
| Hard as nails | 5 letters | rocky |
| Hard as nails | 5 letters | stout |
| Hard as nails | 5 letters | stony |
| Hard as nails | 5 letters | tough |
| Hard as nails | 6 letters | rugged |
| Hard as nails | 6 letters | robust |
| Hard as nails | 6 letters | steely |
| Hard as nails | 6 letters | strong |
| Hard as nails | 6 letters | sturdy |
| Hard as nails | 8 letters | vigorous |
| Hard as nails | 8 letters | puissant |
| Hard as nails | 8 letters | stalwart |
| Hard as nails | 9 letters | strapping |
| Hard as nails | 9 letters | resistant |
| Hard as nails | 11 letters | red-blooded |
| Hard as nails | 13 letters | strong-willed |
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