Button for clear/empty cart in WooCommerce

code.php

<?php

add_action( 'woocommerce_cart_coupon', 'lpb_woocommerce_empty_cart_button' );
function lpb_woocommerce_empty_cart_button () {
	$cart_url = add_query_arg( 'empty_cart', 'yes', wc_get_cart_url() );
	$label = 'Empty cart';
	echo '<a href="' . esc_url( $cart_url ) . '" class="button">' . $label . '</a>';
}

add_action( 'wp_loaded', 'lpb_woocommerce_empty_cart_action', 20 );
function lpb_woocommerce_empty_cart_action () {
	$empty_cart = $_GET['empty_cart'] ?? '';
	if ( 'yes' === $empty_cart && function_exists( 'WC' ) ) {
		WC()->cart->empty_cart();
		wp_safe_redirect( wc_get_cart_url() );
		exit;
	}
}