I don't know about the clogging issue, but I would not dry hop a fruit beer. Seems kind of redundant? Why put the fruit in there if you're covering it with hop character?
In Process - Russian Imperial Stout, Nelson Sauvin Rye IPA, Mild No.3
In Kegs - Barley Wine, Apfelwein, Wild BlackBerry Wheat, Coffee Oatmeal Porter
Gone - so many :(