Crossword Genius

They're qualified to provide what's needed by those taking physics (10)

Ross

I believe the answer is:

dispensers

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'physics' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps there's a link between them I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Another definition for dispensers that I've seen is " Chemists supplying medicines".)

I've seen this clue in The Irish Independent.
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