For those not so familiar with heavy duty graphics packages who may not have a clue, let me explain.
It is a way of putting objects into another shape and that outer shape cutting through any shapes that are not fully inside. It can be very useful but sometimes after you have done it you wish you had changed a bit...
Well, now you can. Because although the objects will have been clipped to fit, each object is STILL fully editable! See the video here.
See, change the shape, change the colour, you can still do whatever you want to the clipped shapes.
Have fun with it!