I used Data::Dump to inspect the structure of $element

use Data::Dump 'pp';
my $feed = XML::Feed->parse(\*DATA)
    or die XML::Feed->errstr;

for my $entry ($feed->entries) {
  pp $entry;
}
[download]

outputs

bless({
  _version => "2.0",
  entry => {
    "dc" => { creator => "foo bar three" },
    "description" => " <p align=\"center\">\n<span style=\"font-size: 
+0.75em;\">
 </span></p>\n<p>words words words</p> ",
    "guid" => "https://example.org/",
    "http://purl.org/dc/elements/1.1/" => { creator => "foo bar three"
+ },
    "isPermaLink" => "",
    "item" => "\n\n\n\n\n\n\n",
    "link" => "https://www.example.org/",
    "pubDate" => "2019-09-10 13:38:00",
    "title" => " Foo Bar Two ",
  },
}, "XML::Feed::Entry::Format::RSS")
[download]

poj