Proper decorum (2,3,2)
I believe the answer is:
ps and qs
(Other definitions for ps and qs that I've seen before include "one might mind" , "Letters" , "they could need minding" , "Correct social manners" .)
I've seen this clue in the Newsday.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.