Saved from https://gist.github.com/champsupertramp/9237eb69b1f76e3b0437b466307f41a2

Ultimate Member - Hide profile tabs from other user roles

<?php
add_filter('um_profile_tabs', 'pages_tab', 1000 );
function pages_tab( $tabs ) {

	$user_id = um_get_requested_user();
	// Show to profile owners only
	if ( is_user_logged_in() && get_current_user_id() == $user_id ) {
		$tabs['faves'] = array(
			'name' => 'Faves',
			'icon' => 'fa fa-star',
			'custom' => true
		);
	}

	// Show to other profiles 
	if ( is_user_logged_in() && get_current_user_id() != $user_id ) {
		$tabs['faves'] = array(
			'name' => 'Faves',
			'icon' => 'fa fa-star',
			'custom' => true
		);
	}

	// Show to everyone
	$tabs['faves'] = array(
			'name' => 'Faves',
			'icon' => 'fa fa-star',
			'custom' => true
	);

	// Hide from specific roles
	$hide_from_roles = array( 'teacher','principal' );

	if ( is_user_logged_in() && ! in_array( um_user('role') , $hide_from_roles )  ) {
		$tabs['faves'] = array(
			'name' => 'Faves',
			'icon' => 'fa fa-star',
			'custom' => true
		);
	}
	
	return $tabs;
}

?>