As the trophy description says, shoot 10 talisman with "skill shots" in a row with your bow.
A skill shot is successful if you release R2 when the targeting reticule is at 50% - ie, when it is half full.
A small tip for those of you who - like me - find it hard to get the timing down: you can do this when the Spirit Mask is enabled (ie, when you're in scan mode). Time seems to move a little slower when you're scanning, and that made it easier for me to get the skill shots.
Not also that you do not need to be running. I just enabled the Spirit Mask and walked around, skill-shotting talisman until the trophy popped.