1991 Chevy Caprice hose or blown rad

1. Hey guys I was driving the other day and once my car got warm the temp gauge the needle kept rising until it went into the red so luckily I was at a stop sign so I backed up off the road and when I got out my car was leaning to the right and there was a huge puddle of antifreeze all over the ground so I looked under hood and it looked to be leaking out of huge hose attached to bottom of rad or even the rad itself does anyone know what this hose is called?So I can call to get a price?
2. My second question is when I start my car every 4th or 5th start the starter sounds like im trying to start it once its already running its very loud and annoying does this mean I need a new starter? Thanks alot