Related Clues:

• Mirror image?
• Front of a clock
• Magic spell
• Display of anger
• Harden by cooling
• Toughen with anger
• Bad humour
• Mood or hardness of metal
• Harden using heat
• Countenance, visage
• Uncontrolled anger
• Volatile anger - don't lose it
• Make hard by heating and cooling, like iron
• Harden by heating and cooling
• Make hard by heating and cooling