Possible Clues:

• 46-Across, with respect to this answer's location
• Bill featuring Grant�s portrait
• Bill that features Grant's portrait
• Livy's L
• Iffy criminal hides last of the loot for number of the stars in America?
• With 39- and 40-Across, length of 60-Across' record hitting streak
• Iffy novel about debasement ultimately, fiend from hell shackling female in vacuous story?
• Large bill
• "Ways to Leave Your Lover"?
• See female awfully fit finally carry half a ton!