NPR Sunday Puzzle (Feb 8, 2015): Knock! knock!:
Q: Name someone who's the subject of many jokes; two words. Remove the space between the words. Insert the letters O and N in that order — not necessarily consecutively — inside this string of letters. The result, reading from left to right, will be two words of opposite meaning that this someone might say. Who is it, and what are the words?
Who's there?
Edit: My hints this week were to arriving at the pearly gates hoping to enter. As for the discrepancy in the wording regarding the missing period in ST. PETER, that didn't bother me. Knowing that the puzzle's creator (Peter Collins) as well as Will Shortz are cruciverbalists, they would both be familiar with fitting a name like ST. PETER into a crossword answer as just STPETER
A: ST PETER --> STOP ENTER