Jeromecd, i think it clashes. The upper and lower part work great alone, but together i do not think it mix well.
I think you should take a look at MellowFellow, he does something "similar" that works very well.
I agree that this seems to "clash" in the sense that the white shirt is all bright and clean while the bottom is more earthen and sombre. Otherwise, white is about as neutral as it gets. There's no way the color alone can't mix with the rest of the outfit. I can't tell whether the fabric is broadcloth or oxford, but if it's the former, you'll def have to switch it out for a rougher fabric to go with everything else. Otherwise, this is a great look. Nice proportions.