Crossword Genius

Sort of government partly of concern to pit workers? (9)

Ross

I believe the answer is:

coalition

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'sort of government' is the definition.
The definition and answer can be both groups as well as being singular nouns.
Maybe there's a link between them I don't understand?

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for coalition that I've seen before include "form of government" , "Alliance of parties" , "Temporary alliance" .)

I've seen this clue in the Evening Standard.
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