Crossword clues for One who can't 21-Down 5 lettersAnswerClueMOLAROne of 21 Across.MINOROne under 21LYRICWith 39-Across, 21-/28-Across, for oneKNOTSOne of these begins 21, 34, 44, and 58ALOSEROne who can't 21-DownLUCCI21-time Daytime Emmy nominee (and one-time winner)ADELEOne-named singer with the albums "19" and "21"OEDAmmon Shea's "Reading the ___: One Man, One Year, 21,730 Pages" (book hailed by the _Times_ as "the 'Super Size Me' of lexicography")OEDReading the ___ (2008 book subtitled "One Man, One Year, 21,730 Pages")OEDReading the ___: One Man, One Year, 21,730 Pages (2008 book)WORDThe last one ends an argument and can be attached to the last one of 21-, 31-, 40-, and 50-AcrossROWOne of 21 in this puzzleAGE21, for oneALLSTAR15-Across was one in 21 of his 23 seasonsIRONWith 21 Across, one of the AvengersOSCARNODOne of 21 for Meryl StreepPIPOne of 21 on a dieJOHNOne of 21 popesCONSONANTOne of 21, or sometimes 20MINERSOnes who dig 21-AcrossSEXTILLIONOne followed by 21 zerosDEA21-Across, for oneGAS21-Across, for oneFIGTREEJesus cursed one in Matthew 21TYROOne who's 21-AcrossCOL21-Down, for one: Abbr.TEDTALKSBrené Brown, Chimamanda Ngozi Adichie, and the founder of 21-Across gave popular onesSIKHOne of more than 21 million IndiansEXECOne in a high 21-Across, for shortENGOne of Alaska's 21 official languages (Abbr.)BUSTExceed 21 in twenty-oneSINSSloth and 21-Across are deadly onesACE21-Across may give you oneNUNOne not part of the 21-DownEGO21 Across had a healthy oneBLACKHOLEThing in the center of this puzzle, and one suggested cause of the December 21 38-DownSAMWith 21-Down, "I'm Not the Only One" singerTYPEOFSCULPTURE17, 21, and 51 Across all finish with oneMONOPOLYGame where one could land on the answers to 17-, 21-, 40-, and 59-AcrossHEADPHONESThey bring music to one's ears ... or a hint to 17-, 21-, 33-, 45- and 54-AcrossTURNTHETIDEReverse one's fortunes, or a hint to what's hidden in 21-, 26- and 43-AcrossITSUPTOYOUI'll defer on this one ... or a hint for what's found in 3-, 9-, 21- and 24-Down?INNERVOICESOne's toughest critics, often, and, literally, three different words hidden in 21-, 26- and 43-Across