Related Clues:

• Sass, with 'to'
• Sass, with "to"
• Bag studio communication system
• Rejoin black market? Disgraceful! Leave me right out
• System of two-way communication
• The cheek of it in Klat?
• Reply sassily
• The cheek to support gossip from the start
• Spill the beans on Finance - what would cheeky chappie say to that!