If I understand you right, the typical idiom to deal with the situation you describe is something like (untested):

package Foo;
# ...
my @fields = qw( eenie meenie minie moe );
make_accessor( $_ ) for @fields;
# ...
sub make_accessor {
  my $method = shift;
  my $sub = sub {
    # your accessor here;
  };
  my $class = caller;
  {
    no strict 'refs';
    *{ "$class\::$method" } = $sub;
  }
  return;
}
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