Communist victory after invasion of port on Gulf (4-4)
I believe the answer is:
left-wing
'communist victory' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'invasion of port on gulf' is the wordplay.
'invasion of' becomes 'win' (I can't explain this - if you can you should give a lot more credence to this answer).
'port' becomes 'left' (port is the left side on a boat).
'on' says to put letters next to each other.
'gulf' becomes 'G' (geographical abbreviation).
'win' after 'left' is 'leftwin'.
'leftwin'+'g'='LEFT-WING'
'after' is the link.
Can you help me to learn more?
(Another definition for left-wing that I've seen is " Socialist".)