Now that you have updated your post and added your code, you need to deference the array:

use warnings;
use strict;

my $item_to_push = 'foo';
my @array = ('derp');
push(@array, $item_to_push);

my %names;
$names{'bill'} = [@array];
print "@{ $names{'bill'} }";
print "\n";

__END__

derp foo
[download]

See also tip #4 from the Basic debugging checklist: Data::Dumper