Possible Clues:

• Actually
• To tell you the truth, the world is not flat, for example (2,1,6,2,4)
• Slightly disturbed at a master attending seedy show, indeed (2,1,6,2,4)
• Actually, a modicum of knowledge brought about a cancelled operation (2,1,6,2,4)
• Conversation continuer #1
• Straightforward
• Actually, answer has been concealed by a small number away from work (2,1,6,2,4)
• Actually, rat-a-tats came off badly (2,1,6,2,4)
• "Actually ..."
• A star team beaten — bad play, actually (2,1,6,2,4)