An elderly Man wearing a olive green shirt and red and white striped apron is stacking cheese.
A man is wearing a apron
A man is wearing a apron who is wearing a olive green shirt and red and white striped apron
One has to wear an apron to be wearing an apron and stacking cheese.
The description of the apron in sentence one as "red and white striped" means the man is "wearing a apron" in sentence two.