Thanks for the clarification.
Based on this sample file it takes just a couple of steps to crop the scene. Note that the following steps can be automated to a large extent with an action or a script.
Select the clipped sun and lock or hide it.
Select menu > Object > Clipping Masks
Hit the Delete key to remove all clipping paths.
Select all, then Object menu > Clipping Mask > Release
Select all, then Pathfinder panel: Crop
Unlock / Show and select the clipped sun, then Object menu > Rasterize
Crop the sun manually.
As already mentioned, one can automate this process, but as you probably have other files that are built in different ways and thus may require varying / additional techniques, it's rather difficult to provide an instant approach.
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