Peach or plum (4)
I believe this clue is a double definition.
'peach' is the first definition.
(thesaurus)
'plum' is the second definition.
(thesaurus)
(Other definitions for tree that I've seen before include "Genealogist's graphic" , "Root-and-branch plant?" , "Chestnut or elm?" , "Plane perhaps" , "Eg, laburnum" .)
'peach or plum' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hue that I've seen before include "Tint, shade" , "General hubbub - . . . and cry" , "appearance" , "Colour or tint" , "complexion" .)