Answer:

alcohol

AnswerCrossword Clue
ALCOHOLPurchase of proof?
ALCOHOLIt comes in fifths
ALCOHOLWhat virgin drinks lack
ALCOHOLStill stuff
ALCOHOLSecond part
ALCOHOLSee 71-Across
ALCOHOLMatter of proof?
ALCOHOLSpirits
ALCOHOLDriving hazard
ALCOHOLProhibitionists would like to prohibit it