Crossword Puzzle 'Keep singing!'

Clue: 'Keep singing!'

39th VP (AGNEW with 5 letters)
39th vice president (AGNEW with 5 letters)
Alma mater of the 39th Pres. (USNA with 4 letters)
39th president of the United States (JIMMYCARTER with 11 letters)
39th Veep (AGNEW with 5 letters)
39th V.P. (AGNEW with 5 letters)
America's 39th President (CARTER with 6 letters)
Do a scathing impersonation of the 39th president? (MINCECARTER with 11 letters)
Favorite Hall of Famer of the 39th U.S. president? (GARYCARTER with 10 letters)
It equals 0.3937 inch (CENTIMETER with 10 letters)