European shrub with pink or white flowers and aromatic blue-black berries (6)
I believe the answer is:
myrtle
(Other definitions for myrtle that I've seen before include "Evergreen shrub with dark purple berries" , "Evergreen shrub with blue-black berries" , "Shrub; girl's name" , "Plant with aromatic blue-black berries" , "Shrub; female name" .)