Gillian Marie answered:
I did find the zip to be a bit tricky, possibly because the clutch is a little small. I used fusible interlining so I had the outer pieces constructed plus the lining pieces with the interlining fused on the. Effectively you sandwich one side of the zipper tape between the lining and the outer and stitch in place. Do the same for the other side of the zipper tape, Fold so that its inside out , making sure the zip is undone, and stitch around the 3 sides. Turn through. The picture on the pdf file at step 14 is the clearest I think.