Crossword Genius

I must enter wild region and produce chivalric code (7)

Ross

I believe the answer is:

bushido

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

'chivalric code' is the definition.
(I've seen this before)

'i must enter wild region and' is the wordplay.
I cannot quite see how this works, but
'i' is within the answer.
'wild' could be 'bush' (bush is a kind of wild) and 'bush' is found within the answer.
'region' could be 'd' (D region is an example) and 'd' is found in the answer.
A single letter 'o' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...

'produce' acts as a link.

Can you help me to learn more?

(Other definitions for bushido that I've seen before include "Code of the Japense Samurai" , "code of honour" , "honourable code" , "code out east" , "Feudal code of the Samurai" .)

I've seen this clue in The Telegraph.
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