Love selection of fruit (6)
I believe the answer is:
Here is my best explanation:
'fruit' is the definition.
(orange is a kind of fruit)
'love selection' is the subsidiary indication.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'selection' becomes 'range' (I've seen this before).
'of' is the link.
(Other definitions for orange that I've seen before include "Go earn the fruit", "Colour of an order", "A rainbow colour", "Fruit; pigment", "Order of the North", "Belisha beacon colour", "Go near (anag) - fruit", "Name of reigning house of the Netherlands", "Colour of Northern Ireland unionism" and "Fruit - part of the spectrum".)