Related Clues:

• Way of signalling English plan to invade beach
• Flag system failing homes and just over half of parents
• This flags up important messages
• Signalling system delivered by horse trained to carry chart to Europe
• Hear poems, in a way, as means of communication
• Old flag signalling system
• Send signals from beach about European plot
• What about plan received by sensitive signalling system?
• *Army communication?
• Make visual signals — a posher me (anag)
• Signalling plan, heroes excited about that
• Signal change in atmosphere, temperature dropping