The forward, who began his career at QPR before moving to Leicester in the summer of 2007, has joined the Silkmen until the end of December.
The 19-year-old made his debut in Saturday's 3-1 home defeat against Rotherham and played the full 90 minutes.
Alexander said: "His debut was forced a bit because Ben Wright was pulled out at the last minute with a groin problem and I thought the lad did okay.
"It's very difficult coming from a Championship club when you've not played a lot of first-team football but he's got a good touch and will do well."
Source: Team_Talk