It's shared in a friendly way, gratis, for nothing (4,4)

I believe the answer is:

free love

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'it's shared in a friendly way' is the definition.
I can't judge whether this definition defines the answer.

'gratis for nothing' is the wordplay.
'gratis' becomes 'free' (synonyms).
'for' means one lot of letters go next to another.
'nothing' becomes 'love' (love is zero in tennis).
'free'+'love'='FREE LOVE'

Can you help me to learn more?

(Other definitions for free love that I've seen before include "Promiscuity" , "presumably ruling out bondage" , "General Congress" .)

I've seen this clue in the Evening Standard.

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