Crossword Genius

Rig order to keep things running smoothly?

Ross

I believe the answer is:

oilwell

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'rig' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?

I don't understand the remainder of the clue.

Can you help me to learn more?

(Another definition for oilwell that I've seen is " source of riches".)

I've seen this clue in The Daily Mail.
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