I can't see any options for offsetting the pad clearance, perhaps hacking the .mod file directly....
The Pad properties dialog has two tabs. The second tab contains what you are looking for
Where? I cant see any offset for the pad clearance in that tab.
You can easily offset the pad, but not the clearance.
The problem is solved by using 0,2mm clearance and have the clearance overlap without overlaping the pads themselves.
I don't use smd much so I haven't noticed this problems in the libraries.
It seems that the issue lies with the values set to 0 (zero) so that they use the global defaults, which perhaps have changed from release to release.