setDescription('The default description.'); return $fields; } /** * {@inheritdoc} */ public static function bundleFieldDefinitions(EntityTypeInterface $entity_type, $bundle, array $base_field_definitions) { $fields = parent::bundleFieldDefinitions($entity_type, $bundle, $base_field_definitions); if ($bundle == 'some_test_bundle') { $fields['name'] = clone $base_field_definitions['name']; $fields['name']->setDescription('Custom description.'); } return $fields; } }