Wiki - Enhanced Imbuing
Imbuing has been modified to allow players to enhance clothing. Imbued clothing will have a maximum of seven properties and 1200 weight.
It should also be mentioned that the base weight of non-exceptional items has been increased from 450 to 700 and the seven property limit applies to all imbued items. The exception to this is jewelry, which retains its' 500 weight limit.
Failed attempts at imbuing consume ingredients, however, so players who pursue the perfect gear will need to hunt a lot of them.
In all other ways the skill works as described here on UO.com's Wiki.