Small stone fruit (6)
I believe the answer is:
cherry
'small stone fruit' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for cherry that I've seen before include ""Loveliest of trees, the ____ now" (Housman)" , "The colour of a red fruit" , "Tree with stoned fruit" , "Cerise" , "Morello-flavoured liqueur" .)