Possible Clues:

• Jewish language
• Arabic cousin
• Language of Literature Nobelist Shmuel Yosef Agnon
• The man given a drink could be Isaac
• Member of people once making explosive concoction
• D'you sound as if one could make a drink?
• Like the letters on a dreidel
• With 65-Across, what aleph begins, in linguistics
• Ancient Semitic language, used in modern version in Israel
• Ancient language