Related Clues:

• Warning evil's masking good
• Initial clue
• Token - symbol - omen - write one's name
• Traffic control - to write one's name
• Indication - put one's name down
• Pointer — indicate agreement in writing
• Put one's name to a document
• Virgo, e.g
• Gesture
• Communicate with hand gestures
• Endorse, in a way
• Speak to the deaf
• Sign a contract, perhaps
• "What's your __?"
• It's not right hiding gravity of warning