Green is so fresh coming out (9)

I believe the answer is:

egression

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'out' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'green is so fresh' is the wordplay.
'fresh' indicates an anagram (a fresh re-ordering of the letters).
'green'+'is'+'so'='greenisso'
'greenisso' is an anagram of 'EGRESSION'.

'coming' acts as a link.

Can you help me to learn more?

(Another definition for egression that I've seen is " Emergence".)

I've seen this clue in The Independent.

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