Mount a size 10 3XL streamer hook, pinch the barb, catch black thread in near the middle of the shank and wrap back to the bend.
Pull about ten pheasant tail fibers, spin them lightly between your fingers so they marry unevenly, and tie them in at the bend as a long tail. Bind the butts forward a short way and trim. You do not want a thick body.
Tie in a length of small gold Mylar tinsel at the rear with the gold side against the hook so gold shows when it is flipped over to wrap.
Split a four-strand length of orange wool yarn and use only two strands; tie it in near the front (not at the rear) so no lump builds at the tail, then take the thread forward, stopping well short of the eye.
Wrap the yarn back and then forward in touching turns to form a thin body covering all the thread, and tie it off.
Rib the body with the gold tinsel in evenly spaced open turns, close together with fine tinsel, and tie off.
Take a small clump of pheasant tail almost as long as the tail and tie it on top with loose wraps so it can spin; add a second clump on the side and a third in whatever bare spot is left, so the fibers surround the front of the hook rather than sitting as a single wing.
Fluff the three clumps around the shank until the fly is evenly covered, then lock everything down with tight wraps and snip the excess.
Push the fibers back with your thumbnail, take the thread behind the eye and build a large streamer head. Whip finish and add a drop of head cement.