Crossword Puzzle Household downsizing event

Clue: Household downsizing event

Downsizing event? (DIET with 4 letters)
Annual TV event, with "the" (OSCARS with 6 letters)
Tanglewood event (CONCERT with 7 letters)
Event that earned McKayla Maroney a silver medal in 2012 (WOMENSVAULT with 11 letters)
Tragic event in 1666 (GREATLONDONFIRE with 15 letters)
Seniors' big event (PROM with 4 letters)
Early household detergent (DUZ with 3 letters)
Lourdes events (CURES with 5 letters)
Drive-in event, maybe? (ONEBAGGER with 9 letters)
Occurrence of events not quite eerily at the same time? (NEARCOINCIDENCE with 15 letters)