Computerised picture of Silicon Valley (4)
I believe the answer is:
icon
'computerised picture' is the definition.
The answer and definition are not the same part of speech.
'of silicon valley' is the wordplay.
'of' indicates the answer is hidden within the clue.
'ICON' is hidden within 'silicon valley'.
Can you help me to learn more?
(Other definitions for icon that I've seen before include "Holy image or symbol on computer screen" , "object of admiration" , "Idol" , "Figure of Christ in Eastern churches" , "Religious work" .)