Tree, fruit and colour (6)
I believe the answer is:
cherry
I believe this clue is a double definition.
'tree' is the first definition.
(cherry tree is a kind of tree)
'fruit and colour' is the second definition.
(I've seen this before)
(Other definitions for cherry that I've seen before include "The colour of a red fruit" , "Bright red" , "Cerise" , "Greyfriars boy identified" , "new ball?" .)