he doesn't want the edge of the model to reflex is what the question is asking yes
options;
- hide parts of the model as Ares points out then do 2 or more rendors to build up the image you want
- change the material surface of the mirror edge to something that does not reflex as much light
- change the level \ angle of light in line with the camera so that the light reflexs less
these are your basic options to get the result you asked for... which one to use depends party on what you want the final rendor to look like i.e, are there going to be more models in later or perhaps a background image