About to go to and fro around marina so they can give everyone the news (8)
I believe the answer is:
reporter
'they can give everyone the news' is the definition.
The definition suggests an adverb but the answer is not.
'about to go to and fro around marina' is the wordplay.
'about to go' becomes 're' (I've seen this in other clues).
'to and' means one lot of letters go next to another.
'fro around marina' becomes 'porter' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
're'+'porter'='REPORTER'
'so' is the link.
Can you help me to learn more?
(Other definitions for reporter that I've seen before include "Newshound" , "One may get a story" , "media person" , "One writes or tells the news" , "News gatherer" .)