Mix hash with a gin and port (8)
I believe the answer is:
shanghai
'port' is the definition.
(I know that Shanghai is a port)
'mix hash with a gin' is the wordplay.
'mix' indicates an anagram.
'with' says to put letters next to each other.
'a'+'gin'='agin'
'hash' put after 'agin' is 'aginhash'.
'aginhash' with letters rearranged gives 'SHANGHAI'.
'and' acts as a link.
(Other definitions for shanghai that I've seen before include "China's largest city" , "Trick (someone) into doing something" , "Force to join ship's crew, Chinese port" , "Might the Shah gain in China?" , "It's wrong to gain hash in the Chinese city" .)