Fragrant resin from some tropical trees (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
elemi
(Other definitions for elemi that I've seen before include "Fragrant tree resin used as incense - I'm Lee (anag)" , "aromatic resin" , "Resinous stuff" , "Tree resin; ie, elm (anag.)" , "It's fragrance" .)