Possible Clues:

• Get on in a dire way that's flat
• Get rid of this about one and that's flat
• Ride about on what is now the flat
• Ride around on this, and that's flat
• Had an evening out with man at club
• Smoothed with domestic device
• Pressed on in dire distress
• Straightened (out)
• Only a single R and a single D and that's flat
• Get on in the ride, and that's flat!