While I read your comment to Radesh, Crops & Luko's sharpeniung thing are quite simple.
1st step - high radius sharpening : sharpening effect set to 20, radius to 40,
Effect : this seems to wash off any haze from the image. Not really a "sharpening" effect, more or less like adding overall contrast.
2nd step - sharpen the darker details : USM set on radius 0.3, effect on 200 or more, OK. THEN click on "Edit/fade sharpening" select "Darken" leave it to 100%
Effect : sharpening dark details, choosing "darken" prevents from any halo effect, but the lighter details have not been sharpened yet, but let's see ...
...3rd step : same as 2nd step, but instead of clicking "darken" now choose "lighten" and remove the halo moving back the effect % arrow towards 30 or 40%.
Effect : sharpening light details but still controling the halos.