Lilly of pharmaceuticals (3)
I believe the answer is:
eli
'lilly of pharmaceuticals' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eli that I've seen before include "- Wallach, US actor" , "High priest in the Book of Samuel" , "Distort then untruth to get a Biblical character" , "Priest at Shiloh (Samuel)" , "Man" .)