So... There are people here that know much more about this stuff than me. But if this was happening to me, I would try putting 4 or 5 of these parts on the bed and printing them all at once. That way, each part gets a chance to cool down a little bit before the nozzle comes back to it. It looks to me like some parts of the print are getting too warm.

Somebody else might have something wiser to say... But until they jump in why don't you try printing a bunch of them and see if the problem goes away?

Also, it kind of looks like you are extruding a little bit more material than you need to. Have you calibrated the extruder with the filament you are using?