8: Fleet defeated in 1588
19: Sheriff or Mountie, e.g.
29: Lab technician, perhaps
33: Any acetate, chemically
36: More than half of adulthood?
45: What you gotta have, in a 'Damn Yankees' song
50: Rolling stone's lack, proverbially
56: Comes down in buckets
58: 'Arsenic and Old Lace' aunts, e.g.
66: 'I'm Sorry' singer Brenda
69: Like any number finishing with '9'