It looks bent to me... I don't think it's something an "amateur" with no pipe repair experience could fix properly. If it were just a cruddy mortise/tenon/shank face you would expect to see a gap all the way around. This looks like its touching at the bottom with a fairly large gap at the top which indicates a bent tenon. It is repairable, but takes a practiced hand. Keeping in mind its near impossible to tell from a couple of poor quality photos, you would have to have the pipe in your hands to inspect it. Might I suggest that the internet is not a great place to find bargain Dunhill pipes. The market fervor around the marquee has driven prices sky high and bred a glut of dishonest sellers looking for a quick buck. Pipe shows are great places to get discount Dunhill's that need a little work with prices commensurate to their condition. I personally have found unsmoked Dunhill's at estate sales for $5. I got my first one for $35 several years ago at the St Louis pipe show,
@georged helped me get it squared away. I generally default to his opinion on all things Dunhill as he is the worlds foremost expert on their repair.
The only way to fix a bent tenon (properly) is to turn a mandrel to fit inside the tenon, heat the tenon and insert the mandrel UP TO the bend, not into the bend or past it. And slowly straighten it. It would take multiple heat cycles and attempts to get it perfect and every attempt you risk snapping it off or otherwise deforming it.
I would pass on this one, the bent tenon is a red flag and indication of other issues unseen in photos.