Related Clues:

• Tide rival
• Time past
• See 23-Down
• Old polit. cause
• Epoch
• Diamond stat.
• Stage of history
• Laundry room brand
• Roman or Greek, e.g.
• Long, long time
• Time of one's life
• From nine to five, in the classifieds
• Quite a while
• See 44-Across
• Significant time