cross-laced corset
A cross lace decoration in the center of the waist area to make it more form fitting, a very classic "corset" appearance.
This includes both ones on a real corset and ones attached to a skirt or dress, but the cross lace part should stay "corset-like". If it expands upwards or downwards, it's a cross-laced top, cross-laced skirt or cross-laced dress instead, depending on the type of clothing item.
This tag implicates corset and cross-laced_clothes (learn more).