Possible Clues:

• Indiscreet talker, an idle chatterer
• Surprisingly alert when entertaining that heartless gossip
• One starts to transmit rumours about old PM, mostly
• Gossip's story regularly enthralling old PM out East
• Magazine say, for gossip
• Informal informant
• King Edward possibly suppressing odd bits of talk and gossip
• Gossip about former PM mostly true? Not half
• Gossip rag featuring lovers primarily
• One who gossips