Cell formatting

How do I write this column

{
  header: 'Link',
  accessorKey: 'url',
  accessorFn: ({ url }) => <a href={url} />
}

{
  header: 'Link',
  accessorKey: 'url',
  accessorFn: ({ url }) => <a href={url} />
}

{
  header: 'Link',
  accessorKey: 'url',
  accessorFn: ({ url }) => <a href={url} />
}

{
  header: 'Link',
  accessorKey: 'url',
  accessorFn: ({ url }) => <a href={url} />
}

... so the cells contain anchor links instead of the text [object Object]?