Possible Clues:

• Paper joined by charming female, future controller?
• What could delay paper? One's spelling!
• Spelling expert here? One only works certain hours
• Paper Conservative put in with device for later activation
• Paper's consumer publication said when to …
• On paper, charming female that'll get something started on schedule
• Charming woman, on paper, that may be off-putting later
• Automatic on-off device
• Control device which, say, comes on daily
• On and off, perhaps this tells you how fast she goes on her broomstick