Clematis

Agreed :)))

Is it The Duchess of Edinburgh ? Pretty no matter what she is called.

Thanks for your comment. Unfortunately, no idea what it's called. Could well be the one you suggest. Usually keep the labels, but the plant's been there a little while, and label seems to have disappeared. It's not that I would have thrown it away or anything like that !>!-?....

I did look it up Panny, as I rather like this double...bloom...and it is as Pimpernel says D of E ....
You'll have to write a new label, now, so you don't forget lol....:)))

Well, thanks to you both. Would never have guessed. Will def. write this down now. What a posh name tho...x