Fix your constructor as GrandFather indicated, and your code 'works'. You probably did not intend to output a reference to a filehandle. I have made your test case the default input, and added one line to print $row.

BEGIN{
    $ARGV[0] //= \qq(Importance,Company,Department,"Job Title"\n);
}
use v5.10 ;
use strict;
use warnings ;
use Text::CSV ;
use FileHandle ;
my $csv = Text::CSV->new({binary => 1}) ;
my $fh = new FileHandle ;
open( $fh, "<", $ARGV[0])
    or die "Can't open $ARGV[0]: $!\n" ;

say $fh ;

my $row = $csv->getline($fh) ;
say  do{ local $" = "\n"; "@$row" };


exit
[download]

OUTPUT

FileHandle=GLOB(0x8bba28)
Importance
Company
Department
Job Title
[download]

You do not need both FileHandle and open. Either one will do the job.