Dressing for a good appearance, but only from the waist up.
Anthea was upper-dressing preparing herself for an international video conference, wearing a smart business top and pyjama bottoms.
Mark modelled his fabulous new sunglasses for the cover of a well known fashion magazine. He was only wearing a red thong on the rest of his body, clearly upper-dressing.
The news reader for was upper dressing with an exceptionally smart jacket, pristine white shirt, black tie, and absolutely nothing else apart from a pair of flip flops.