Related Clues:

• ''Thou shalt not ___''
• A Gospel writer
• Writer Twain
• Execute
• Grade, as papers
• Board and lodging
• See 20-Down
• Conserve
• Not give up
• Test grade
• Not toss
• What you must do when the trade falls through
• Don't ditch
• Grifter's target
• ''___ on truckin'''