Inexperienced eco-politician (5)

I believe the answer is:

green

I believe this is a double definition.

'inexperienced' is the first definition.
(similar in meaning)

'eco-politician' is the second definition.
(eco-friendly politician)

(Other definitions for green that I've seen before include "Immature" , "raw, as > part of course" , "It's for putting on - colour - inexperienced" , "Grassy area; politician" , "Ecologically correct" .)

I've seen this clue in The Sun and The Times.

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