I don't have a female so I'm a little rusty on their requirements but the big problem you want to avoid is eggbinding. If you overfeed the chameleon they produce bigger clutches. As I understand they lay clutches of around 20 in nature but can lay 10 times as many eggs in captivity. This presents a problem, though, because it's a larger number of eggs with a higher chance of becoming impacted.
The key is to make sure you have sand for her to bury her eggs (even unfertilized ones) in available at the right times. I'm sure others will be able to give you better advice than me, though!
You'll need to keep this chameleon separate from her mate. Most chameleons (including veileds) need to be housed separately. They should only be briefly introduced for their breeding period and then separated again. Even seeing another chameleon causes them stress which can be detrimental to their health. So, there's some bad news...
Good news is, though, the females stay smaller and don't need as large of habitats as males!