The term 'It's Blowing in the Wind' can be summarized by two crossword solutions: VANE (4 letters) and CHIME (5 letters). A VANE is a device used to measure wind direction, usually consisting of a flat plate or set of vanes mounted on a rotating spindle. A CHIME is a musical instrument consisting of a set of tuned metal tubes or rods that are struck with a hammer to produce sound. Both of these items are associated with wind, as they are both affected by it and can be used to measure its direction and strength.