Copper computer network initially enhanced for a song (5,4)

I believe the answer is:

penny lane

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'a song' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'copper computer network initially enhanced' is the wordplay.
'copper' becomes 'penny' (I've seen this in another clue).
'computer network' becomes 'LAN' (abbreviation for local-area network).
'initially' indicates taking the first letters.
The first letter of 'enhanced' is 'e'.
'penny'+'lan'+'e'='PENNY LANE'

'for' acts as a link.

Can you help me to learn more?

(Another definition for penny lane that I've seen is " 1967 Beatles' song".)

I've seen this clue in The Times.

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