Crossword clues for On ___ fours 3 letters:IMPFour-year-old, e.g. (when they're being playful anyway)ATVMotocross four-wheeler, brieflyRBIOne of four in a grand slamWKSThe Feb. four?UFOYou can find one in the four longest puzzle answers, even if you don't believeQIDFour times daily, in an RxPIEHome to four-and-twenty blackbirdsONEA quarter of fourRRSFour Monopoly squares: Abbr.ANOFour seasons in BajaUNOWild Draw Four gameTATBody art, briefly ... and, initially, a hint to this puzzle's four longest answersSSNFig. whose last four digits are often requestedIREIsl. with four provincesALIBoxing legend who went 1-3 in his last four boutsDNDRole-playing game with a 20-sided die, familiarly, and a feature of this puzzle's four longest answersATVCertain four-wheeler, for shortACEFour Goren points: Bridge.TEAFour o'clock affairONEFour fourthsWAROne of the Four HorsemenOFAFour-kind linkGPANo. ranging from zero to fourFABThe ___ Four (The Beatles)BSSSome four-yr. degreesLON2016 Final Four coach KrugerEWEShe has a four-part stomachNETFinal Four mementoYOMTwenty-four hours in IsraelNSAGovt. agency with four cryptologic centersCSACountry that lasted four years: Abbr.EONOne of four for 57-AcrossEMIDefunct "big four" record companyPHISports team abbr. in all four major U.S. pro sports leaguesBSSSome four-year degs.ZENFour Ways of Knowing practiceGHIFour lettersRCAStereo cord with four male partsPIEFour-and-twenty blackbirds' placeAIROne of the four elementsHUP___ two three four (military cadence)ONEQuarter of fourBASSome four-year degs.UNOGame with Wild Draw Four cardsHUP___, two, three, four (military march cadence)GERFour-time World Cup-winning nat.QIDFour times a day, on an RxUKEFour-stringed instrument, brieflyBEEBuzzer hidden four times in this puzzleVETToday's honoree and word found in the four theme entries