Sew the shoulder seams of both the fashion fabric and the lining. Then lay the pieces right side together and stitch up the front, around the neck edge and sew the armhole. You will be leaving the side seams open at this point.
Now, trim and clip your seams. I like to use pinking shears so I trim and clip all in one operation.
Hard to get a good picture for you. You will reach up the open back and pull the front through the shoulder.
There, you now have the lining turned. Remember the side seams are still open, so we will finish those next.
Meet fabric to fabric and lining to lining and sew in one continuous seam. Finish seam, press and you have a nice neat lined top.