Grove fruit (6)
'grove fruit' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for orange that I've seen before include "Fruit - part of the spectrum" , "juicy snack" , "Colour of an onager?" , "Dutch royal house" , "A rainbow colour" .)
(Other definitions for olive that I've seen before include "Its branch is a peace emblem" , "This branch is offered to show peace" , "Fruit giving oil" , "A Med. fruit-tree" , "Greyish-green colour" .)