<ul class="event-list">
<?php
$speaker_posts =  new WP_Query([
       'post_type' => 'speakers',
       'meta_query' => [
           [
               'key' => '2021_speaker',
               'value' => '1',
               'compare' => '=',
           ],
       ],
    ]);
    if ( $speaker_posts->have_posts() ) :
        while ( $speaker_posts->have_posts() ) : $speaker_posts->the_post();

// THIS PART IS THE WONKY BIT

        if ($speaker_posts) :
            foreach ($speaker_post as $speaker) :

            $label = '';
            $mod = get_field('moderator', $speaker->ID);
            $intr = get_field('intro_speaker', $speaker->ID);

            if ($mod == true) :
                $label = ' <span style="color:' . get_field('primary_branding_color', 'options') . '">(moderator)</span>';
            endif;

            if ($intr == true) :
                $label = ' <span style="color: #35a6c4">(introduction)</span>';
            endif;

            ?>
// WONKY END

<?php

  $img_url = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'headshot' );

?>



<li class="module">
<a class='iframe' href="<?php the_permalink(); ?>">


   <div class="portrait">

    <div class="portrait headshot" title="<?php the_title_attribute(); ?>">
        <?php echo the_post_thumbnail('medium'); ?></div>
</div>



    <div class="inline-content">

        <div id="custom-bg" style="background-image: url('<?php echo $image[0]; ?>')"></div>
             <div class="title"><?php the_title_attribute(); ?></div>
             <p class="smalljobtitle"><?php the_field('job_title'); ?><?php echo $label; ?></p>
    </div>
</a>

</li>
    <?php endwhile; ?>

<?php endif; ?>
</ul>