Once i have 'baked' an animation to the daz time line and I would like to re edit my animation how can i clear the daz animation timeline?
This is assuming you're using DS4. Select your figure. On the Parameters menu at the top left there's a little arrow. Clicking that gives you a menu. Choose Clear Animation > Cleare Figure (or whichever option suits - if you have morphs, then you might want to use Clear Figure Pose).
Picture shows the menu option: