Ingredient in some lotions (4)
I believe the answer is:
aloe
'ingredient in some lotions' 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 "O, ale with bitter plant" , "Flower, maybe vera" , "Genus of bitter herbs" , "shrub" , "Bitter drug from a leaf juice" .)