A shade inexperienced? (5)
I believe the answer is:
green
I believe this clue is a double definition.
'a shade' is the first definition.
(I know that green is a type of chromatic color)
'inexperienced?' is the second definition.
(similar in meaning)
(Other definitions for green that I've seen before include "Environmentally concerned" , "It's for putting on - colour - inexperienced" , "The colour of immaturity" , "Permission to proceed" , "personification of envy" .)