Possible Clues:

• First name of 18-Across
• Jewish priest — book of the Bible
• Eponymous OT priest
• Book that begins 'Now in the first year of Cyrus king of Persia ...'
• Book that chronicles the return to Zion
• Hagiographa book
• Prophet, last of sequence in period
• Prophet is last character found in long period
• Bible book after Daniel
• University cofounder Cornell