Possible Clues:

• Fail this manoeuvring, causing skid
• Don't manage to contain this erratic skid sideways
• Skid
• Uncontrolled, this's to flop about
• Swerve back and forth
• Swerve, as on icy roads
• What mermaid has to swing from side to side?
• Swerve back and forth, as a car's rear end, or a feature of the answer to each starred clue
• This film's premiere stirred up trouble, as badly directed trailer may do