Aah. Solved it! Surprisingly easy. If anyone has had the same problem, here is how to fix it:
In Dashboard (WP-Admin) select Menus from Appearance drop-down. A new page will open. On the left you will see Custom Links. I tried to drag this to the right-hand side, but it didn’t work. Then I discovered you need to put the “#” mark in URL text field and write the menu item in Label. In my case, this was Text. Then I could drag this to the right and it essentially creates a new menu called Text. I then drag my two sub-menu items (About and CV) to this new “Text” and delete the previous “Text”. You now have the option to select the arrow next to Text” and customise this link.
Hope this makes sense.