Related Clues:

• Barely passing mark
• Nearly failing, to a prof
• Snider who testified before Congress about parental warnings on music
• Part of DC
• The last of Sandra
• River
• Hip-hop's Kool Moe ___
• Don't start?
• Raj's sister on "What's Happening!!"
• The end of the world?
• 'The Ladies Man' actor Billy ___ Williams
• "E.T." actress Wallace
• "A Raisin in the Sun" star Ruby
• Wallace of "ET"
• Subpar grade