Related Clues:

• Message rejecting Mrs Simpson from leaders left Edward throneless
• It may bring word of obstruction over border rising
• Message left in note, eg 'Castle in the morning'
• Even when it's wired correctly, it can still shock
• Wire cable
• One sheep carrying letter is followed by another message
• Mrs Simpson allowed to set up message
• Message that includes note on sheep
• Cable TV, it's said, has little weight
• Pre-fax communique
• Cable to phone Mrs Simpson back
• Message sent by European member cutting one form of public transport
• Text ancestor
• Pre-1980s electronic message
• Let up, for example, on sheepish type in old communiqu?