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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Junior's junior, briefly:

SOPHS: Juniors' juniors, briefly
SOPH: Junior's junior, briefly
SOPH: Future junior, briefly
SOPHS: Future juniors, briefly
SOPHS: Seniors' juniors, briefly
PSAT: Source of junior anxiety, briefly
SOPH: Junior-to-be, briefly
NOTVTIX: Punishment for junior Broadway purchases, briefly
TRIKE: Junior's transport, briefly