Coin trick often seen on a computer screen (4)
I believe the answer is:
icon
'a computer screen' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'coin trick often seen' is the wordplay.
'coin' can be anagrammed to 'ICON'.
Though, I'm unsure how this is indicated.
'on' is the link.
Can you help me to learn more?
(Other definitions for icon that I've seen before include "Something revered" , "Devotional painting" , "Image or figure venerated as sacred" , "Image of a religious figure" , "Painting or person regarded as sacred" .)