GOOD ONES!"'Shh!' from a plumber?"
PIPEDOWN [theme answer]"'Shh!' from a mail carrier?"
ZIPIT [theme answer]"Red coin?"
Didn't we just have IMHO yesterday and UTNE the day before? And I still don't know what IMHO stands for.
This puzzle has a most clever theme, as usual for Don, so I wonder why it is placed on a Tuesday. Perhaps this bodes well for a good week.