Possible Clues:

• Exam for future attorneys: Abbr
• Test for an aspiring atty
• Step toward a JD
• Hurdle for a future atty
• 36-Across took it
• Exam for a would-be atty
• Hurdle for atty. wannabes
• Exam for a future D.A
• Future J.D.’s hurdle
• Future JD's hurdle