Clementine mission was to test SDI imagery and sensors. It ending up with the Navy was the result of some creative political funding to get it through a hostile Congress that tried to thwart President Reagan’s “Star Wars” space-based missile defense program at every turn. Turning it into a non-obvious military program to assist in space exploration allowed it to get the political support to actually happen. It was a huge success, which almost resulted in a Clementine II mission that would have found ice on the Moon much sooner.
In any case the high res images are still classified, AFAIK