Binky is an old Bunny these days, knocking on the door of 15 years. A year or so ago I noticed the 9th fret was a fraction proud which makes playing at the 8th fret 'buzzy'. It's now at the point where something needs doing...
I have a fret hammer, and a fine fret leveling file, although I've never used the file in anger. Hammering the fret doesn't work either, I've tried this with fair force (nothing crazy) and no dice.
From the below picture, can anyone advise what action is best to resolve the proud fret and kill the buzz.