Possible Clues:

• Seems it's never G for the dollar
• The inexperienced endorse American money
• Might it be ne'er G that would be worth a dollar?
• It's ne'er G that's worth a dollar
• Eco-friendly support for the dollar
• That's ne'er G for 8 down
• Ne'er G, perhaps, for the buck instates
• Ne'er G for one dollar?
• Legal-tender bill, slangily
• 'Ne'er G, perhaps, in USA, for what it's worth (9)'