Neighbours, as one, going on strike for campaign platform (7)
I believe the answer is:
soapbox
'campaign platform' is the definition.
'soapbox' can be an answer for 'platform' (soapbox is a kind of platform). I am not sure about the 'campaign' bit.
'neighbours as one going on strike' is the wordplay.
'neighbours as' becomes 'soap' (I can't explain this - if you can you should believe this answer much more).
'one going on' is a charade indicator (letters next to each other).
'strike' becomes 'box'.
'soap'+'box'='SOAPBOX'
'for' is the link.
Can you help me to learn more?
(Other definitions for soapbox that I've seen before include "Public speakers may stand on this" , "Crate used for public speaking" , "Makeshift orator's stand" , "Rostrum to speak from" , "Platform for airing one's views?" .)