Hi, Rusty!
Yes, Well done!
I think that Poplar is near Canary Wharf, and is on the Docklands Light Railway.
I have never been there though.
I have started the 15 x 15...
I began well with 1a (chowder) and 1d (codify; I like that one) going in quickly.
I was looking out for a Latin term after what you'd said, and am happy with "sine prole" meaning "without issue" in 5d .
I have "sip" = "drop"
But I didn't know that SP is an accepted abbreviation for the Latin term?
However, my crossers now confirm.
But now I'm coming to a halt...I began so well it gave me a false sense of security!
I think I might put the puzzle aside for a while!
I am nowhere near up to your standard in solving this!
It isn't "easy" to me!
(I shall tell Sally she needs to bid on eBay!)