We've sold a few things including my old suit that no longer fitted, a couple of the wife's dresses, tops and jackets (she did know about it

) and they did sell.
But be prepared to get practically nothing for the clothes unless it's a good brand name. Occassionally clothes sell well, but that seems to be womens stuff more than mens and only when it's something special. Although we had one expensive dress that didn't sell, even though it was a top name, only worn once and had good photos and listing.
You win some, you lose some.