You need a bit of stem and a growing tip to make a clone, not a fan leaf. If your plant is not big enough to give you that, veg it longer before cloning. The only way to clone from a fan leaf is through tissue culture, and it takes MONTHS and a good knowledge of sterile technique and access to lab gear. Plus the rooting and shooting stages are on different media, and I still have not been able to find evidence that anyone has developed a shoot-multiplying media that works well on pot.