Crossword Genius

Oscar's wild for clues like this (6)

Ross

I believe the answer is:

across

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

'clues like this' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for across that I've seen before include "Clues like this" , "Horizontally" , "this venue" , "ax" , "Transversely" .)

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