Entering fashionable activity with club on green (9)

I believe the answer is:
inputting
'entering' is the definition.
'fashionable activity with club on green' is the wordplay.
I cannot really see how this works, but
'fashionable' could be 'in' (in can mean fashionable or trendy) and 'in' is present in the answer.
'green' could be 'putting' (synonyms) and 'putting' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for inputting that I've seen is " Feeding".)
