Crossword clues for Matter to 4 letters:GREYKind of matter for an Oxford neuroscientistSIZEIt matters, to someAKONSinger with the 2007 #1 song "Don't Matter"CRUXHeart of the matterVOIDOf no matterATOMMote of matterBRANMuffin matterATOMBuilding block of matterSIZEIt matters, it's saidITSA__ matter of recordADIA1998 hit that asks, "But does it matter?"CARLFamily Matters dadATOMDispenser of sawbucks (or ... basic unit of matter)ITOOLangston Hughes poem about how black lives matterINRETerm indicating what the matter isATOMUnit of matterNITSSlips that don't matter in the grand schemeANTIPrefix with hero or matterMINDMatter topperEMITSend out matterANTIHero or matter frontNOUNSubject matterGISTHeart of the matterGRAY_____ matter (brains)ATOMIt makes everything matterPITYA matter of regretCASEMatter for MasonNULLContaining no matterELSENothing ___ Matters (Metallica song)MEATHeart of the matterATOMMatter unitCOREHeart of the matterATOMBit of matterORESMined-over matterALBAWhite matterATOMMinute particle of matterATOMVery small matterCHIPAnte matterMASSBody of matterCASELegal matterPEATPartially decayed matter used in balneotherapyELMOCharacter who talked to his dad, Louie, about Black Lives Matter protests on a 2020 episode of {/Sesame Street/}CRUDFoul matterATOMSmall matter?BIASMedia Matters subjectASTRDark matter sci.PITHHeart of the matterANATGray matter? (abbr.)ATOMMatter constituentTEXTPrinted matter