Name that spider

The garden fairy has been persuaded to put her sparys, pellets and lethal doses away so that the birds, frogs, hedgehogs etc can enjoy the damp bounty of this wonderful summer.
We have a tiny Beech tree, which was planted as a seedling 6 years ago. It is kept very small deliberately, the birds, especially tits ans sparrows love it. At this time of year the leaves start to become coated in white woolly aphids and then the leaves curl. This perplexed me until about 30 minutes ago. Here you can see the origami specialist at home surrounded by his larder.
Does anybody know what type of spider this is please? Have a look large.

This site may be of interest to those who hunt around deep dark corners for bugs and things.

Natural History Museum.