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Idea essentially seen in computer network carrying a heavy burden (5)

Ross

I believe the answer is:

laden

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'carrying a heavy burden' is the definition.
I can't tell whether this definition defines the answer.

'idea essentially seen in computer network' is the wordplay.
'essentially' means to look at the middle letters.
'seen in' means one lot of letters goes inside another.
'computer network' becomes 'LAN' (abbreviation for local-area network).
The centre of 'idea' is 'de'.
'de' placed into 'lan' is 'LADEN'.

Can you help me to learn more?

(Other definitions for laden that I've seen before include "Like many a cargo ship" , "Like cargo boat" , "Encumbered" , "Carrying goods" , "charged a lot" .)

I've seen this clue in The Telegraph.
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