In reply to Tim saville:
> Okay but how would you abseiling back down and clean route?
If you're abseiling back down to clean the route, like if your second couldn't complete it, or if they got some gear stuck and the leader wanted to try to get it out, then you'd set up an anchor at the top and abseil from it. Make sure you've got a prussic (as you always should) to hold you so you're hands free trying to get the gear out. Then you'd walk back up to the top to retrieve your anchor. That's for a normal cragging situation, like at Stanage or the vast majority of single pitch crags.
When you get into multipitch, or things you have to abseil into (like sea cliffs) things get a bit more complex, these are what people would generally refer to as more 'committing' climbs. Before you start out on this type of climbing, you might want to learn how to rescue yourself / your second if you get stuck, and also be prepared to leave some gear behind if it won't come out.
When starting out in trad, it's best to build up slowly, as I'm sure you would, and start out with things that don't require abseiling. It makes everything a whole lot easier and safer. Once you're more comfortable you can up the commitment level, but there's tonnes of great climbing to be done without much commitment, so don't rush.