Beyond which I can not affect you

What's the issue? 1A Beginning Place is EDEN (although in hindsight I probably shouldn't have said "beginning" place as we start the meta at 3D). 5A Australian lingo "afternoon" is shortened to ARVO. 6D. There is a raggae artist called TNEZ. Never heard of him? Well, he never heard of you either. I gave you titles to the songs so you can google him. 7A. There is a british company that make joysticks and game controllers called HORI, if you hadn't heard of it if you take the ring dance HORA and replace the A with an I you get HORA. 1D. Our planet is EA(R)TH remove the middle letter and you get EATH which is a scottish word for easy. 2D. Titular Bond villain. I don't need to explain Dr. No. 3D the answer is EVER and the rest of the clue explain the Meta. 4D. Just google this. It's NOZI.

The Event Horizon is an astronomical phenomenon around a massive body where light can not escape the pull of gravity. As such what occurs within the region where light can't escape will not be observable or in any way effect an on observer out side the area. This forms an observation/affect boundary.