No right answers yet
you are a very bad man, a very bad man indeedOoooh - I cannot bear tormenting my friends any longer
It is a Sycamore!
The confusing element is that - where a branch has ripped out sometime in the past - a common or garden Blackberry has rooted!
It is the blackberry leaf you are seeing, not the tree leaf (all of which are much higher)
Don't blame me - the rest of the gang egged me on to post this puzzle
Well, that explains the drip points on the leaves.
Just out of curiosity then John, which subspecies of Rubus fruticosus is it then?