Spread under overhead shade (6)
I believe the answer is:
orange
'shade' is the definition.
(orange is a colour)
'spread under overhead' is the wordplay.
'spread' becomes 'range' (I've seen this in other clues).
'under' is a charade indicator (letters next to each other) (below, in a down clue).
'overhead' becomes 'o' (head letter of 'over').
'range' after 'o' is 'ORANGE'.
(Other definitions for orange that I've seen before include "Order of the North" , "One's pipped" , "Name of reigning house of the Netherlands" , "juicy snack" , "Stocking-filler fruit" .)