Hand lotion additive (4)
I believe the answer is:
aloe
'hand lotion additive' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aloe that I've seen before include ". . . . vera, soothing plant" , "Genus of bitter herbs" , "has a bitter taste" , "Succulent plant (may be bitter!)" , "shrub" .)