Crossword puzzle clue "first class slangily"

First class, slangily

Allow first-class passengers to board first, say

Art class feedback session, slangily

"Class of" class

Class where you might learn about class, informally?

Second in his class in West Point's class of 1829

History class: F -- “The professor ignored my attendance record and class participation, judging me entirely on ___”

Class, level or class level