Other crossword clues for answer "COSTELLO"COSTELLOAn ElvisEveryday I Write the Book singerThe other ElvisRadio Radio rockerOne of a classic comedy coupleRocker ElvisWho's on first? inquirerWho's on First? comicBuck Privates starPardon My Sarong starAbbott's partnerWho's on first? askerBig name in '40s filmsMajor '40s box-office drawI'm a bad boy! sayerPrime Minister of Ireland.Irish Prime Minister.John A. of Eire.Popular comedian.Premier of O'Kelly's country.Prime Minister of Eire.Television attraction in March.P. M. of Eire.Actress DoloresHalf of a 1940's-50's comedy duo9-Across's sidekickHe didn't know Who's on firstElvis of musicRocker Elvis whose aim is trueHe asked "Who's on first?"Half of a classic comedy duoHow did I get on third base? comedian