Year of double-digit Epic
Rule. First two words express the number of the year of double-digit. Words "start","love","oh" and "no" express 0.
Nuclear(7) Non(0)-Proliferation Treaty.
Advance(7) starts(0) The Expo '70 World's Fair in Osaka, Japan.
Astound(7) no(0) Prince Sihanouk of Cambodia.
Israeli(7) oh(0) Air Force kill 47 Egyptian school children .
Arrival(7) oh(0) Apollo 13.
Invades(7) oh(0) , the U.S. to Cambodia.
Beatles(7) love(0), final album, Let It Be.
Anxiety(7) oh(0), A coup in Argentina.
October(7) oh(0) Crisis: In Montreal, Quebec Minister of Labour Pierre Laporte kidnapped by FLQ
If you try to make this, "number of letters" is on the Internet with the word "cross word".