Crossword clues for They secrete 6 letters:SECRETSomething to whisperSECRETLike some ballotsSECRETConfidentialSECRETWord after top or tradeSECRETLike some agents and SantasSECRETClandestineSECRETUnrevealedSECRETConfidential matterSECRETHiddenSECRETIt may be told in angerSECRETLike passwords, ideallySECRETWith 35-Across, anonymous voting method, and a hint to each set of circled lettersSECRETCrypticSECRETI've Got a __SECRETUndercoverSECRETNot publicly knownSECRETWith "The," popular self-help bookSECRETConfidential mannerSECRETWhispered itemSECRETKind of agentSECRETUnder wraps, so to speakSECRETWhispered thingSECRETConfidenceSECRETIt may be hard to keepSECRETWith 37-Across, Election Day practice ... and a hint to this puzzle's themeSECRETLike Superman's alter egoSECRETPrivileged infoSECRETLike some alter egosSECRETSomething to keepSECRETLike many C.S.I.S and C.I.A. filesSECRETDiary tidbitSECRETThe ___ of Nimh (1982 cartoon)SECRETWhispered wordsSECRETIt might be leakedSECRETI've Got a ___ (game show)SECRETHush-hushSECRETLike passwords or passcodesSECRETThe ___ GardenSECRETIt's public when it's openSECRETSkeleton, so to speakSECRETBack-roomSECRETIt's not for everyoneSECRETConfidant's confidenceSECRETTrade ___SECRETUnder wrapsSECRETFor only a select fewSECRETUndisclosedSECRETHidden, as eight related pieces in the gridSECRETSkeleton in the closet, e.g.SECRETConcealed