Crossword clues for One under 20 4 letters:PINTAn imperial one is about 20% larger than an American oneFIVEOne in ___ (20%)SIDEOne of 20 for an icosahedronTEENOne under 20TRIO20 Across plus one.SIGN20-A, for oneBRIT20 Across, for oneTEENOne not quite 20LASSMerida of 20-Across, for oneTREEA part of one is in 20-, 38- and 53-AcrossSOSAFirst to ever hit 20 homers in one month in Major League BaseballPLEA20 Across, for oneTEENOne twixt 12 and 20ESPOOne-time teammate of 20-Across, familiarlyTEENOne between 12 and 20ASPSOne of these lurks in 20-, 30-, 41- and 51-AcrossTOESCold ones, unless you find that 20-AcrossDEARWith 67-Across, one of two pen names punnily hinted at by 20-, 37- and 52-Across (can you find the other one?)MILEOne of 3,365 in U.S. Route 20SHOE20-Across singer might have a "French" oneECKOClothing store giving 20% off for life to anyone with a tattoo of one of its logosSOAPThe end of each of 20- and 56-Across and 11- and 29-Down is a popular onePUSHUPOne of the 20 in "Drop down and give me 20!"FIFTHOne ___ (20 percent)LATKEOne of 20 AcrossMACARTHUROne of 20-30 "genius grants" awarded annuallyTOEOne of 20 for a bearOCTETMendelssohn's Opus 20, for oneDIEA 20-sided one may be used in Dungeons & DragonsSAFETYMATCHOne of 20 in a book, typicallyICEAGEThe current one peaked 20,000 years agoCIGOne of 20 in a pack, for shortTOEOne of 20 digitsSCENEOne of 20 in "Hamlet"CIGOne of 20 pack items, for shortMATCHOne of 20 in many booksSEPTETBeethoven's Opus 20 is oneCIGOne of 20 pack items, informallySEPTETBeethoven's Opus 20, for oneCAROne of 20 featured in this puzzleCOMMITTEEOne of 20 standing in the HouseTRUCKA kind of one begins 20-, 27-, 49- and 61-AcrossLIFEBOATOne of 20 on the TitanicFRANCOne of 20 in a napoleonEXERCISEROOMWhere one might 20-, 26- and 45-Across?RATIO4:20, for oneMATCHOne of 20 in a bookODYSSEYJourney such as the one where 20-Across appearsALTAIROne of the 20 brightest starsSEAThere's one hidden in 20-, 34-, and 49-Across