Rory shortly works up to edge of shiny surface (6)

I believe the answer is:

mirror

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'edge of shiny surface' is the definition.
'mirror' can be an answer for 'surface' (I have seen 'Reflective surface ' mean 'mirror' so perhaps 'surface' could also mean 'mirror'). I am not sure about the 'edge of shiny' bit.

'rory shortly works up' is the wordplay.
'shortly' means to remove the last letter.
'works' becomes 'rim' (I can't explain this - if you can you should give a lot more credence to this answer).
'up' says the letters should be written backwards (in down clue: letters go upwards).
'rory' with its last letter taken off is 'ror'.
'ror'+'rim'='rorrim'
'rorrim' in reverse letter order is 'MIRROR'.

'to' is the link.

Can you help me to learn more?

(Other definitions for mirror that I've seen before include "1 [UNLUCKY FOR SOME]" , "newspaper" , "Image reflector" , "Reflect" , "Daily paper" .)

I've seen this clue in The Irish Times.

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