Float hidden by mum on road leading to port (8)
I believe the answer is:
shanghai
'port' is the definition.
(I've seen this before)
'float hidden by mum on road' is the wordplay.
'float' becomes 'hang' (hang in the air).
'hidden by' indicates putting letters inside (inserted letters are hidden inside).
'mum' becomes 'sh' (both are used to tell someone to be quiet).
'on road' becomes 'ai' (I've seen this in other clues. I am not sure about the 'on' bit.).
'hang' inserted inside 'sh' is 'shangh'.
'shangh'+'ai'='SHANGHAI'
'leading to' is the link.
Can you help me to learn more?
(Other definitions for shanghai that I've seen before include "Press men at one time" , "Trick someone into joining a ship's crew unwillingly (in China?)" , "once used to drug sailors, possibly" , "somewhere in China" , "Once impressive" .)