Crossword puzzle clue "name or nickname"

"Jeopardy!" host who dropped his first name of George to go by his middle name's nickname: 2 wds.

Sitcom star (he played an innkeeper) who dropped his first name of George to go by his middle name's nickname: 2 wds.

Incoming Baseball Hall of Famer who dropped his first name of George to go by his middle name's nickname: 3 wds.

Nickname of the man (born 2/12/1809) who gave the address at 18A, issued the 28A/45A, was the first elected president of the 60A Party, and whose name can be found in this puzzle's main diagonal

Letters between a name and a nickname

Boxer whose nickname is the last five letters of his last name

Feminine name or nickname

2012 Alicia Keys song that shares its name with the nickname of Katniss in "The Hunger Games": 3 wds.