Crossword clues for Fool, with "up" 4 letters:FOOLSnowFOOLOutfoxFOOLConFOOLApril 1st dupeFOOLFlummoxFOOLCourt figureFOOLApril honoreeFOOLSimpletonFOOLPull one's legFOOLCourt jesterFOOLGullible oneFOOLSilly oneFOOLPut something over onFOOLJesterFOOLMeatballFOOLPlay a trick onFOOLDeceiveFOOLKing's clownFOOLPull a prank onFOOLApril 1 prank victimFOOLBuffoonFOOLMisleadFOOLHave on, to a BritFOOLPull a fast one onFOOLNitwitFOOLHoodwinkFOOLStart of an eight-word stepquoteFOOLSurely he jestsFOOLGullFOOLPull a trick onFOOLCreamy dessertFOOLApril 1 victimFOOLPut one over onFOOLNoodleheadFOOLIdiotFOOLSilly personFOOLHe who hesitates, per Mae WestFOOLSilly billyFOOLHorse's assFOOLOne who sits on a whoopee cushionFOOLChowderheadFOOLIgnoramusFOOLSee 30 acrossFOOLTrickFOOLDupeFOOLBamboozleFOOLDeluded oneFOOLApril 1 "honoree"FOOLBlockheadFOOLTrifle (with)