Crossword Genius

A quick run in small typeface (6)

Ross

I believe the answer is:

sprint

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

This might be a double definition.

'a quick run' is the first definition.
(I've seen this before)

'small typeface' is the second definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for sprint that I've seen before include "quick run" , "Rush" , "Quick dash" , "Short fast race" , "To make fast progress" .)

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