Guys thank you all for your amazing help.
The teacher had to admit that these were all correct, however he originally had the idea of "STAR" as the yacht had recently been featured on the news.
This has been a brilliant mind boggler...thanks again for everything!
Will send congratulatory lollipops to Elf, Jar, Tim & DrBob...mind you I think I may enjoy them myself and then just describe them to you all

xx