Trees of Lebanon (6)
I believe the answer is:
cedars
'trees of lebanon' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for cedars that I've seen before include "Trees with perfumed wood" , "Aromatic trees" , "Fragrant trees of the Lebanon" , "Strangely sacred trees" , "Tress of Lebanon" .)