Swift. Xcode. How to enlarge annotation?

Question

iOS

Good afternoon! Please tell me how to increase the annotation size of an object on the map using Mapkit.
Objects on the map are defined by a class with characteristics: coordinates, type, heading, subheading. In the annotation, apart from the address, nothing fit. To extend the annotation, I added a label:
let detailLabel = UILabel()
detailLabel.numberOfLines = 0
detailLabel.text = annotation.subtitle
view.detailCalloutAccessoryView = detailLabel
But after that, all the annotations on the map got messed up. Please tell me, or any other method or how to fix this one?