Most Chileans playing this form of gambling? (12)

I believe the answer is:

slotmachines

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

'form of gambling?' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'most chileans playing' is the wordplay.
'playing' indicates an anagram.
'most'+'chileans'='mostchileans'
'mostchileans' is an anagram of 'SLOTMACHINES'.

'this' is the link.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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.