It sounds like you'd want to set dragClickables to false. From the docs.
dragClickables: Boolean - By default, Draggable will work on pretty much any element, but sometimes you might want clicks on <a>, <input> <select>,<button>, and <textarea> elements (as well as any element that has a data-clickable="true"attribute) NOT to trigger dragging so that the browser's default behavior fires (like clicking on an input would give it focus and drop the cursor there to begin typing), so if you want Draggable to ignore those clicks and allow the default behavior instead, set dragClickables:false. (note: before GSAP 2.0.0, dragClickables was false by default)
Hopefully that helps. Happy tweening.