Crossword Genius

Bond's old school one? (3)

Ross

I believe the answer is:

tie

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

'bond's' is the definition.
(both can mean a connection)

'old school one?' is the wordplay.
I cannot quite understand how this works, but
'one?' could be 'i' (Roman numeral) and 'i' is found in the answer.
The remaining letters 'te' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for tie that I've seen before include "Draw for neckware" , "Fasten, link to" , "It's worn under the collar" , "11 [KNOT]" , "Almost level" .)

I've seen this clue in the Evening Standard.
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