Related Clues:

• Reverse known initially in bit of blind negotiation
• Spills the beans, producing shrieks of delight from pigsty
• Reveals that only a sale will be considered?
• Advises William's family
• Verbalises
• Carol sits on top of saucepan and spills the beans
• Makes a high-pitched cry
• Turns informer
• Accidentally reveals
• Can't keep a secret
• Does a number on?
• Isn't tight-lipped
• Spells it out, as it leads to a revelation
• One needs to listen to them at the beginning of 14 and 18 across
• Caves under interrogation, say