Possible Clues:

• Hot stuff written about keeping one's advantage
• To no --
• Any help for a five that are sick?
• Have efficacy
• A bribe once could be efficacious
• On the face of it, by the sound of it, this will help
• Make use
• Serve ace to Glen, say
• Benefit of something that may save face, say
• Will this, by the sound of it, help to cover your face?