Related Clues:

• Trusty
• Firmly fixed
• Like some mattresses
• John Grisham novel, with "The"
• "Can't argue with that"
• Like Wayne's grit
• Well-grounded
• Persistent
• Like some political supporters
• Frequently guessed test answer
• Test answer with a 50/50 shot
• Quiz option
• 'It is so'
• Permanent
• Honorable