Related Clues:

• Use a cupel
• Dreaded class word
• Step in getting a license
• Word with eye or final
• Big test
• Final, perhaps
• Pro or con follower
• It makes the grade
• Classroom trial
• Word with litmus or taste
• Try out
• Makeup, e.g.
• See 18-Across
• Sound engineer's word
• GP's stock in trade