Crossword clues for Substance. 6 lettersAnswerClueALKALISubstance that neutralizes acid.DRYERSSubstances used in paints.MAGMASMolten substancesIODINEAntiseptic substanceCURAREResinous substance used as an arrow poisonENAMELHardest substance of the body.ENAMELTooth substanceTANNINRed wine substanceBALEENSubstance used by whales as a feeding filterHOLLOWLacking substanceASSAYSSubstances under analysisADSORBAccumulate on a surface, as a dissolved substanceROSINSRubs with a sticky substancePOTASHSubstance from wood ashes.MONISTBeliever in a reality made of a single substanceMARROWBone substanceAMADOUSpongy substance from fungiTALLOWFatty substanceTANNINSubstance that gives red wine biteLITMUSSubstance in acid testsHOTWAXHair-removal substanceRESINSViscous plant substancesTARMACRunway substanceSTARCHFood substance.ENAMELCrown substanceRENNETCurdling substanceNACRESButton substancesPOTIONVial substanceBALEENKeratinous substance on some marine mammalsNEBULAGaseous body of stellar substance.OPIATEControlled substanceCLASSCLike the least dangerous controlled substances, in U.K. lawHOTICENickname for sodium acetate, a crystalline substance in hand warmersNAPALMFire bomb substanceHOTOILMassage substance, maybeTONERSPricey office substancesALKALISubstance with a pH higher than 7SOLUTESubstance componentFLASHYImpressive, though lacking substanceTHINLYWithout much substanceTALCUMSubstance in the Nash poem "Reflection on Babies"POTASHFertilizer substanceTOXINSPoisonous substancesPOISONToxic substanceDRIERSMoisture-absorbing substancesTALCUMFriction-reducing substanceSOLUTEDissolved substanceSALVESSoothing substancesNITRIC___ acid (substance once known as aqua fortis)STARCHLaundry substance.