What does HLD mean under "Caution Ind" in an inmate arrest inquiry?

It means HOLD. In Florida state court, the judge at first appearance can add a condition to bond known as a "Nebbia Hold" or "Bail Source Hearing". A Nebbia hold allows the court to inquire into the source of the funds used for the bond. The problem with a Nebbia Hold is that it can delay a person being released from custody. This might be a spot for a good attorney, knowing how to navigate this process.