Crossword clues for Have efficacy 5 letters:AVAILBe efficaciousAVAILEfficacyAVAILHave efficacyEFFICACYAbility to workEFFICACIOUSWorking as desiredEFFICACIOUSHaving a striking effectEFFICACYProductivenessNERFReduce the efficacy of, in gaming slangNERFTank the efficacy of, in gamer slangAVAILINGEfficaciousVAINWithout efficacy.POTENTEfficaciousUPLIFTINGLike an efficacious sermonCHARLIESBrand X adding 41 marginally efficacious good-time guys (8)