Crossword clues for Pop up again:POPSee 11-DownPOPWith 45-Across, students' unwelcome surprise ... or a hint to this puzzle's themePOPWeasel sound?POP___ the question (propose marriage)POPSBursts, as a balloonPOPWord before art or musicPOPBurstPOPSound from a cork gunPOPSound made by the weasel?POP__ for (buy)POP___ Goes the WeaselPOPKind of artPOPKind of corn or gunPOP__-up (infielder's chance)POPLike some quizzesPOPSInfield fliesPOPAppear unexpectedly, with "up"POPSOpens, as a hoodPOPMusic store sectionPOP__ psychologyPOPPEDAsked, burst open, extracted, or broke, as the ends of this puzzle's four longest answersPOPGrammy Awards categoryPOPBurst openPOPWeasel word?POPSuddenly appear, with "up"POPSReally stands outPOPPal of Snap and CracklePOPCork's soundPOP__ flyPOPIce-cream treatPOPSHas fun with bubble wrapPOPBust a balloonPOPSee 9 DownPOP1960s-70s; funk, early hip-hopPOPSBalloon-bursting soundsPOPCook corn, in a wayPOPTiny explosionPOPCork-removal soundPOPStand outPOPGenre for 23 or 28 AcrossPOPMom-and-__ storePOPSLight orchestral musicPOPPEDBurst, as a bubblePOPSGoes offPOPSFather, slangilyPOPBurst one's bubblePOPSDadPOPType of quizPOP___ of colorPOPHe had his day.