Moons about current fixtures (3,4)

I believe the answer is:

mod cons

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'fixtures' is the definition.
Both the answer and definition are plural nouns.
Maybe you can see a link between them that I can't see?

'moons about current' is the wordplay.
'about' indicates putting letters inside.
'current' becomes 'dc' (abbreviation for direct current).
'moons' enclosing 'dc' is 'MOD CONS'.

Can you help me to learn more?

(Another definition for mod cons that I've seen is " latest stuff at home".)

I've seen this clue in the Sydney Morning Herald.

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