Today’s Saturday Stumper

Today’s Newsday  Saturday Stumper, by Matthew Sewell, is good fun, and easy for a Stumper. But I have no time to write it up this morning.

One of many clue-and-answer pairs I admired: 10-D, eight letters: “Serial port users.” No spoiler here; the answer is in the comments.

[Why is the word template in the URL? Because I was unable to delete it from the post title on my phone. Grr.]