theme), OIL OF OLAY (14A. “Love the skin you’re in”), ORDER OF OMEGA (19A. Undergrads’ Greek leadership society), ORACLE OF OMAHA (35A. Warrant Buffett’s sobriquet), OATH OF OFFICE (54A. You need to raise your hand to receive this) and ONE OF OURS (60A. Pulitzer-winning novel by Willa Cather) comprise the interrelated group of