Posted: 08/10/2014 at 11:36
Most clems can take a good hack.
I would get rid od the elder unless you want a wild look, I'd get rid of the willow unless you want a lot of work that has no end.
Those willow shapes and fences that Alan mentions look nice for a while but they need constant controlling. They don't sucker so the ones coming up in the blackcurrants were probably sticks from pruning. If you leave them on the ground they root