The funds in your Seller Dashboard will change status from 'Pending' to 'Available' once the buyer approves the sale. If there's no approval from the buyer, the funds will automatically become available 3 days after the item has been delivered, whichever of these events occurs first.
Once the funds have been made "Available" in your Seller Dashboard, the funds are automatically transferred to your bank account (please make sure that your bank information is correct and linked to your account - "Update Bank Information).
Cashing out is safe. TackTackRoom uses Stripe to process payments and bank transfers securely. You can read more about Stripe here. Stripe is certified to PCI Service Provider Level 1. This is the most stringent level of certification available.