Related Clues:

• See 19-Down
• Grammatical case
• See 56-Across
• Midterm, for one
• Use a cupel
• Dreaded class word
• Step in getting a license
• Final, perhaps
• Pro or con follower
• It makes the grade
• Word with litmus or taste
• Try out
• Makeup, e.g.
• See 18-Across
• Sound engineer's word