Crossword Puzzle Writer on class struggle

Clue: Writer on class struggle

Classic struggle (AGON with 4 letters)
In a class by oneself (e.g. ALLALONE with 8 letters)
Class without struggle (EASYA with 5 letters)
Class that's no struggle (EASYA with 5 letters)
Classic writer's manual, and an alternate title for this puzzle (ELEMENTSOFSTYLE with 15 letters)
Essay writer's class: Abbr. (ENG with 3 letters)
Sign up for an online class (ENROLL with 6 letters)
Class struggle? (e.g. EXAM with 4 letters)
Cause of a class struggle? (e.g. EXAM with 4 letters)
Focus of a class struggle (EXAM with 4 letters)