Crossword clues for One who's empty up there 4 lettersAnswerClueNESTA college kid might leave one emptyATOMMore than 99% of one is empty spaceTWITOne who's empty up thereGOALOne may go into an empty netNESTEREmpty-___ (one whose kids have left home)UNPACKEmpty one's bagsUNPACKEDEmptied one's bagsDRANKUPEmptied one's glassNESTEREmpty ___ (one whose kids have moved out)TIGEROne making empty threatsSYNDROMEEmpty nest, for oneAIRHEADOne with an empty atticBEERMEAnother one here; I'm empty ...PAPERTIGER*One who's an empty threatINNWhere one hopes to find an empty roomFIREDRILLOne reason a school will empty out