Raw, inexperienced (5)
I believe the answer is:
green
I believe this clue is a double definition.
'raw' is the first definition.
(synonyms)
'inexperienced' is the second definition.
(similar in meaning)
(Other definitions for green that I've seen before include "raw, as > part of course" , "Environmentally sound" , "Ecological" , ""Go" signal" , "Eg, avocado, emerald" .)