Related Clues:

• Grade that describes this puzzle's theme
• River through Wales
• Figure in the high 60s
• Scrabble two-pointer
• Danish capital?
• End to end?
• Backyard foragers, in places
• Ruby from Cleveland
• Not-so-good grade
• Unsatisfactory grade
• "Bury My Heart at Wounded Knee" author Brown
• Poor-but-passing grade
• Rivers come before the sea, but this river comes after the sound of the sea
• The sound of the river comes after the sound of the sea
• After the sound of the sea it gets to the sea