Crossword Genius

Take away display on wall in quiet road (8)

Ross

I believe the answer is:

shanghai

I'm a little stuck... Click here to teach me more about this clue!

'take away' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Maybe there's a link between them I don't understand?

'display on wall in quiet road' is the wordplay.
'display on wall' becomes 'hang' (I can't justify this - if you can you should give a lot more credence to this answer).
'in' indicates putting letters inside.
'quiet' becomes 'sh' (both can be said to tell someone to be quiet).
'road' becomes 'AI' (resembles Ah, a major UK road).
'hang' going into 'sh' is 'shangh'.
'shangh'+'ai'='SHANGHAI'

Can you help me to learn more?

(Other definitions for shanghai that I've seen before include "Abduct; Chinese port" , "Kidnap - Asian city" , "Largest city in China" , "part of China?" , "Kidnap sailors" .)

I've seen this clue in The Independent.
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