Small lozenge (8)
I believe the answer is:
pastille
'small lozenge' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pastille that I've seen before include "Flavoured or medicated lozenge" , "Small sweet/lozenge" , "One medicated sweet is the alternative" , "Lozenge, to soothe the throat perhaps" , "List plea for the small sweet" .)