Short description of an orange? (5)
I believe the answer is:
pithy
This clue is a double definition.
'short' is the first definition.
(thesaurus)
'description of an orange?' is the second definition.
(oranges have pith)
(Other definitions for pithy that I've seen before include "Short and to the point" , "Terse, powerful (speech)" , "Short and sweet" , "Concise and full of meaning" , "Concise and meaningful" .)