First embroider the flap for your zipper clutch
(this will be file "a" from your download). If the flap is lace, follow this step. If the flap is sheer fabric (such as organza) follow the next step.
For the lace flap, use 30wt. cotton thread. Begin by winding a bobbin with the same thread used in the top needle and embroider the lace piece onto hooped heavy water-soluble stabilizer.
Once the lace is finished being embroidered, trim away the excess stabilizer. Then soak the piece to remove the rest of the stabilizer, and allow the piece to air dry before pressing them flat with an iron.