Crossword Puzzle Aerialists' safeguards

Clue: Aerialists' safeguards

Inventing safeguards (PATENTS with 7 letters)
39th of 50 (NORTHDAKOTA with 11 letters)
Safeguards, in a way (ARMORS with 6 letters)
It equals 0.3937 inch (CENTIMETER with 10 letters)
Certain safeguards (SECURITYBLANKETS with 16 letters)
Aerialists (FLIERS with 6 letters)
Super Bowl to be played in the year 3968, at the current rate (MMII with 4 letters)
Org. that safeguards pets (SPCA with 4 letters)
Reactions to aerialists (GASPS with 5 letters)
39th VP (AGNEW with 5 letters)