Rating | Solver | Clue |
---|---|---|
REINFORCE | Toughen | |
INURE | Toughen | |
TEMPER | Toughen (steel) | |
TOUGHENED | Of Toughen | |
TOUGHENING | Of Toughen | |
ENDURE | To harden; to toughen; to make hardy. | |
ANNEAL | Princess Royal and Pacino join forces to toughen metal | |
PLANISH | To make smooth or plane, as a metallic surface; to condense, toughen, and polish by light blows with a hammer. |