EFS

• 4-point Scrabble tiles

• 40% of fifty?

• A lot of fluff

• Abysmal grades

• Affair twosome?

• Affluent couple?

• Affluent duo?

• Awful grades

• Bad grades

• Before gee: pl.

• Before gees

• Daffy duo?

• Failing grades

• Falstaff finale?

• Fig leaf's outer edges?

• Fluff trio

• Fluffy threesome

• Flunking grades

• Flunking letters

• Gee preceders

• Gees' predecessors

• Insufferable pair?

• Jeff has two

• Letters

• Letters before gees

• Letters starting many military plane names

• Letters that flunk

• Marks of failure

• Office couple?

• Pieces of fluff

• Poor grades

• Puff pieces?

• Reasons for repeats, maybe

• Report card disasters

• Terrible grades

• The only grading letters that appear anywhere in this puzzle (other than the present clue)

• These are no passing fancy

• Three in fifty-five

• Transcript flaws

• Transcript standouts

• Two of fifteen?

• Two of fifty

• Two out of fifty?

• Two-thirds off?