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

Crossword clues for Stern's rival:

IMUS: Stern rival
IMUS: Longtime Stern rival
DONIMUS: Howard Stern rival
IMUS: Stern's rival
IMUS: Longtime radio rival of Stern
IMUS: Stern's radio rival