I found this sweet little crossword puzzle creator that helps you create puzzles that you can post on a website (say, in blackboard) and you can complete online as an interactive game, or you can print out the puzzle, clues and answer key on separate pages (or as separate pdf files you can post on blackboard).
Check out elipsecrossword.com. It is a free download for window users. I downloaded a copy of the offline software to my MAC using my parallels cross-platform software. It was very quick to set up and use.
There many options for saving the puzzle and clues – I’m sure you’ll find a combination that would work for you.
Here’s a puzzle that I created: States and their mottos