Crossword Puzzle Sch. for the lower grades

Clue: Sch. for the lower grades

So-so school grades (CEES with 4 letters)
School grades (MARKS with 5 letters)
List of school grades (REPORTCARD with 10 letters)
The lower foreleg in beef (SHIN with 4 letters)
Lower foreleg in beef (SHIN with 4 letters)
Site of CaliforniaÂ’s Forest Theater (CARMEL with 6 letters)
Theater school study (DRAMA with 5 letters)
Theater schlepper (GRIP with 4 letters)
Ford's Theater event: Apr. 14, 1865 (ASSASSINATION with 13 letters)
Require forbearance -- and what this puzzle's theme might do (TAXONESPATIENCE with 15 letters)