Hi Can anyone identify this tree for me please

Please could you show a photo of the whole tree as well?
Have you noticed any flowers, berries, seeds etc? There are several possibilities that it isn't quite.....

Could be hickory, walnut, white ash, etc by your photos. As steragram said need much more info to whittle the many possibilities down.

Is it growing as a sucker from the trunk behind it? Pics aren't clear enough to see whether the leaves are toothed, nor whether there's a terminal leaflet or not, but if its growing off a large trunk, it'll be whatever the trunk is its growing from.... at the moment it could be anything from Ash to Sorbus to Ailanthus to Rhus and even Wisteria, hard to say...

Sorry about that last sentence - don't know what I was intending to say.Fact remains, we need to see the whole tree.

Leaves alternate, so not an ash. The stems look too slender to be a member of the walnut family. It looks to me like a Wisteria, but there are so many other candidates.