Crossword clues for Here's an idea... 4 lettersAnswerClueIDEANow there's an ___!' up 2009 IDEA The very ___!" ("What nerve!")IDEAIt can come to youIDEAVisionIDEAIt's at the end of a blockIDEAWord from the Ancient Greek for "I see"IDEAOne may ask what the big one isIDEAInvention's originIDEANascent planIDEACreative flashIDEAHelper-outerIDEASkull-session productIDEAIntellectual property?IDEAThink-tank offeringIDEAA rough one is typically in the ballparkIDEAIt's symbolized by a light bulbIDEAOverhead lightbulbIDEAForehead-slap inducerIDEACreative starting pointIDEASuggestionIDEAInvention inceptionIDEAImagine that!IDEANow there's an ___!IDEASee 65-AcrossIDEAThinker's productIDEAVague outlineIDEAResult of brainstormingIDEAA point of departure and no more: PicassoIDEAWhat a germ can becomeIDEALight bulb's symbolic meaningIDEAconceptionIDEANovel thoughtIDEAEureka! producerIDEACortex productIDEAInventor's outputIDEAThat's a good ___!IDEAPuzzlewriter's needIDEABirth of a planIDEACartoon bulbIDEAThere's an ___IDEAPossible solution?IDEABrainstorm goalIDEACreative thoughtIDEAGray-matter outputIDEAResult of cogitatingIDEAProject's basisIDEAHypothesisIDEAIt might be brightIDEAThink tank productIDEABreakthroughIDEASee 24-Across