Ancient way of cooking lard is OK (4,4)

I believe the answer is:

silk road

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'ancient way' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'cooking lard is ok' is the wordplay.
'cooking' is an anagram indicator (cook can mean to falsify or distort).
'lard'+'is'+'ok'='lardisok'
'lardisok' with letters rearranged gives 'SILK ROAD'.

'of' is the link.

Can you help me to learn more?

(Other definitions for silk road that I've seen before include "Ancient trade route from China" , "Old trade route to China" , "Caravan route" .)

I've seen this clue in The Times.

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