Drink cures heart-break (10)
I believe the answer is:
chartreuse
'drink' is the definition.
(Chartreuse is an example)
'cures heart-break' is the wordplay.
'break' is an anagram indicator.
'cures'+'heart'='curesheart'
'curesheart' with letters rearranged gives 'CHARTREUSE'.
(Other definitions for chartreuse that I've seen before include "The spirit" , "Pale green-yellow colour" , "Carthusian liqueur" , "green liquid" , "Green-yellow liqueur" .)