Help Identifying self seeded plant

Can anyone help identify this plant?  Two self seeded last year, I pulled one but let the other grow (with anticipation) but I can not identify it!

 I hope this uploads okay -   Any help appreciated, I do not know whether to let it be or not!

It looks like Clematis pitcheri to me.

Thanks National Treasure, figrat and Celtic_Charmer, all three of your suggestions crossed my mind but I could not find anything definite to identify it.  I suppose the only thing I can do is to wait and see if it flowers.

Thanks again.

Clematis - the wild Old Man's Beard sort that you see in the hedgerows, I think.  (I have it in my front garden, and it's a bit of a thug tbh).

National treasure it looks like you were right - I sent a photo to a friend at a major garden centre and he said it was an evergreen honeysuckle called Lonicera Hallian - Thank you!