torprestegard

I got some help and fixed it. For others wondering about the same:

If you, in the front-page.php, change this code

<div class="<?php echo $page_class; ?>">
				<div class="page_text_container">
				<?php if ( has_post_thumbnail() ) { the_post_thumbnail(); } ?>
					<h1 class="entry-title"><a title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h1>
					<?php the_excerpt(); ?><a class="more-link" title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php _e( 'Read more','radiate' ); ?></a>
				</div>
			</div>

with this code

<div class="<?php echo $page_class; ?>">
        <div class="page_text_container">

                <?php if ( has_post_thumbnail() ) { ?>

                <a href="<?php the_permalink(); ?>">
                        <?php the_post_thumbnail(); ?>
                </a>

                <?php } ?>

                <h1 class="entry-title"><a title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h1>

                <?php the_excerpt(); ?><a class="more-link" title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php _e( 'Read more','radiate' ); ?></a>

        </div>
</div>

it will make the image clickable and take you to the featured page.

To make this bit more obvious you could do something like this in the Custom CSS

.home #featured_pages img:hover {
opacity:0.8;
}