Under the "figures" drop down menu there is a command "conform to" that is supposed to make the clothing object fit and conform to your figure. However, in my experience it doesn't always work and Poser points out work arounds in the manual. The one that is suggested most is to turn off the "visible" option in the properties dialogue for the particular body part that shows through the clothing object. A problem with that though is sometimes the objects are not exactly uniform. For instance: a small shirt on a muscular figure; if you make the abdomen invisable then the edges of the shirt may not line up with the hips. The bottom line is I think, you still have to fiddle with the transform controls to try and get the clothing to fit as closely as possible in those cases. Even after using the "conform to" command.