Number Ten backed old Lib Dem's links with PC (8,6)

I believe the answer is:

ethernet cables

I'm a little stuck... Click here to teach me more about this clue!

'backed old lib dem's links with pc' is the definition.
I can't judge whether this defines the answer.

'number ten' is the wordplay.
I cannot quite understand how this works, but
'number' could be 'l' (L is an example) and 'l' is found within the answer.
an anagram of 'ten' is 'net' which is located in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.