Crossword Puzzle Certain longhorn

Clue: Certain longhorn

Longhorn's school, informally (TEXAS with 5 letters)
Longhorn's Red River rival (SOONER with 6 letters)
State with certainty (e.g. AVER with 4 letters)
Coach of the 2005 NCAA football champion Texas Longhorns (MACKBROWN with 9 letters)
"That's a certainty!" (BANKONIT with 8 letters)
Longhorn's rival (AGGIE with 5 letters)
Rush hour certainty (TRAFFIC with 7 letters)
Longhorn (e.g. STEER with 5 letters)
Say with certainty (AVER with 4 letters)
Longhorns (STEERS with 6 letters)