Related Clues:

• Examined for quality or reliability
• Kicked the tires of, so to speak
• Enjoying a breather
• Proven in the lab
• Now proven
• Tried exam give two poor marks
• Put through trials
• Still treats to distribute
• Put into beta
• Queen beset by an ordeal departed
• Still relaxing
• Proven by trial
• Like students at the end of the semester
• Stopped king interrupting a challenge
• Known to be effective