Crossword Puzzle Warns, with ''off''

Clue: Warns, with ''off''

Super Bowl to be played in the year 3968, at the current rate (MMII with 4 letters)
39th VP (AGNEW with 5 letters)
39th vice president (AGNEW with 5 letters)
39th Veep (AGNEW with 5 letters)
39th president of the United States (JIMMYCARTER with 11 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)
39th of 50 (NORTHDAKOTA with 11 letters)
Alma mater of the 39th Pres. (USNA with 4 letters)