Related Clues:

• Provide an endorsement
• It's immoral hiding gravity of warning
• "Stop," for one
• Photographic memory, e.g
• Billboard, for example
• Shower offering
• 11-Down, for one
• Do it on the dotted line
• Portent; notice
• The twins, say, communicate non - verbally
• Ability to talk in unknown languages
• Give your name to, as a gesture
• A bent for getting something for nothing
• Notice; omen
• Give autograph as a gesture