Communication brought to me on the second green (7)
I believe the answer is:
message
'communication' is the definition.
(a message is something communicated)
'brought to me on the second green' is the wordplay.
'brought to' means one lot of letters go next to another.
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'the second' becomes 's' (common abbreviation).
'green' becomes 'sage' (shade of green).
'me'+'s'='mes'
'mes' next to 'sage' is 'MESSAGE'.
(Other definitions for message that I've seen before include "Brief communication" , "Signal" , "The medium is the - (McLuhan)" , "Missive" , "meaning" .)