This name is pronounced [ahk-lees]/[aahk-leese]. I’ve also heard a throatier [ch] sound as in the Scottish word loch, like [achl-ees], but I’m not sure if it’s an accurate pronunciation.(Sources: https://youtu.be/1BUuNcOLy7k, https://youtu.be/n2h2nzB-w0s)
(Sources: https://youtu.be/1BUuNcOLy7k, https://youtu.be/n2h2nzB-w0s)