Cough drop (7)
I believe the answer is:
lozenge
'cough drop' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lozenge that I've seen before include "Diamond shape - tablet" , "Medicated tablet" , "Small tablet or sweet to be dissolved in the mouth" , "Diamond-shaped parallelogram" , "Diamond-shaped sweet" .)