Related Clues:

• Treeless plains, miles covered by father and son
• Undermine plan to go north, that's plain
• S. American plains
• Plain girl father's after
• Plain woman's afterthought about article
• Undermine plan to return to part of South America
• Grassy plains in South America
• Mug's plan to go over grassy plains
• Undermine plan, turning into a grass
• Father grabs music system from school flatlands around Buenos Aires
• Plains of the Argentine
• The twit has the chart the wrong way round: that's plain
• Plain girl the dope's taken up with
• Page in South America chart turned up, showing these?
• Treeless plain(s)