The crossword solutions for the term 'IT'S NOT THERE' are 'MIRAGE' (6 letters) and 'HERE' (4 letters). A MIRAGE is an optical illusion caused by atmospheric conditions, which makes it appear as if there is a pool of water or some other object in the distance when in fact there is nothing there. The word 'HERE' is used to indicate a place or location that is close to the speaker or writer. In this context, the two words together suggest that something is not present in the immediate vicinity, even though it may appear to be so.