Makes the odds less rough? (5)

I believe the answer is:

evens

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

'makes' is the definition.
The definition and answer can be both related to change as well as being verbs in their -s form.
Maybe you can see an association between them that I don't see?

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for evens that I've seen before include "50-50 odds" , "50:50 probability" , "Oddly, these could be odds" , "1-1" , "Bookies' odds matching the amount staked" .)

I've seen this clue in The Irish Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.