As most regular Wee Stinker solvers will know, nearly every week (there have been a few exceptions), Myops will link the first two across clues together. In yesterday's puzzle 1A & 5A are a well known alternative to a franking machine.
Thanks, seamus ayrshire. I noticed that only recently.
23a is "A gage cut back 20.".
I have delta which I can't parse except I thought gage cut back could be del, a gage being a pledge. For 20d, I have rider.
Thanks!