WordPress at a glance
action is not described

clean_comment_cache action-hook . WP 4.5.0

Fires immediately after a comment has been removed from the object cache.

Usage

add_action( 'clean_comment_cache', 'action_function_name_3556' );
function action_function_name_3556( $id ){
	// action...
}
$id(int)
Comment ID.

Where the hook is called

clean_comment_cache()
wp-includes/comment.php 2809
do_action( 'clean_comment_cache', $id );

Where the hook is used (in WP core)

Does not used.