This puzzle has three parts. First, answer the clues below. Second, insert a single letter somewhere in those answers to make a new, unrelated word or phrase. Part three, those added letters will spell out the name of a famous person. Who is it?

1. Getting a very high score on - as a test
2. One who prefers to be by himself
3. You _ _ _ here - map designation
4. Home of Arizona State University
5. Common, recyclable container
6. Sultanate on the Arabian Peninsula
7. Food for pigs
8. Pretoria's land - abbr.
9. It can go from ear to ear
10. Lemon, orange, or lime follower
11. Kind of loser or muscle
12. Scarlett's home

Answers to the clues:

1. ACING
2. LONER
3. ARE
4. TEMPE
5. CAN
6. OMAN
7. SLOP
8. RSA
9. GRIN
10. ADE
11. SORE
12. TARA

Answers to new phrase or words, with added letters capitalized to spell out the famous person's name.

1.       acHing
2.        loAner
3.           Rare
4. tempeR 
5.         cYan 

6.        oH man 
7.       slOop 
8.         Ursa 
9.  grinD 
10.     aIde
11.     sNore
12.     tIara - - - - HARRY HOUDINI

Credit: NY Times Crossword
August 24, 2017
Neil Patrick Harris and David Steinberg