Possible Clues:

• Of late, that's where you see 5 down
• Position of flag set for mourning
• Position flown to show mourning
• Where flags show one's late
• Where flag is flown to denote mourning
• Sounds as if it's morning for Ma or the saint
• Ma, perhaps, not completely up the pole
• Where flag is flown in mourning
• Position of flag to denote mourning
• Where it's flying for Mother or the late saint