Solved ID please

Can anyone tell me what this plant is? It's in my neighbours garden but tends to push through the fence slats. It must be about 10ft tall. Thanks

 

Looks rather like Elderberry to me.

 

Does anyone think it's Giant Hogsweed? My mother keeps trying to convince me it is! To me, the leaves are different.

 

No, it's Elderberry

Giant Hogweed flowers are 3 foot across

 

It'll start to form berries soon. It's elder.

 

Thank you very much. At least I know I can trim it without danger of burns! Note to self, never listen to my mother!

 

Elderberry is a hedgerow bush, spread by birds mostly, unless you can use the flowers, http://www.bbc.co.uk/food/recipes/elderflowercordial_6465, suppose you use the berries for wine ??, it can be a nuisance, my mothers much neglected garden was full of them, took me a whole autumn to dig the roots out, 20 years+ ago they were about 10/12 ft tall, they spread, if it`s close to your fence I would consider asking neighbour if I could remove it.

 

If you want to use the plant to your advantage (with someone else providing the growing space for you!), you can make cordial and wine from the flowers, but the berries are much more versatile.
I make elderberry and clove syrup (more vitamin C in elderberries than blackberries), which is brilliant in the winter months as a hot drink, or poured over ice-cream. Basically use it as Ribena!
Of course, there is elderberry wine!
The berries are useful to keep in the freezer. If your apple and blackberry crumble has a tendancy to look a little insipid in colour, a handful of elderberries added to the fruit mix will give the fruit a lovely rich colour, and add a fruity sharpness to the flavour. The same with blackberry jam.