It has only been a few weeks since I first was able to put a name to this tag, and since then I have seen it several times. The graffiti artist is Slim Pickings, who is part of the No Frills collective.
I rather like this curved wall at Dean Lane, and this clean piece stands out really well over the messy burners underneath. I still don’t know enough about Slim Pickings to read what his tag says, but it looks like TEUP or TOP or something like that. More from SP to come.