Thanks Chirisxx
And thanksChaucer49 for confirming the same problem on iPad!
I have contacted the app people at the Guardian to complain about it, they didn't seem to understand what the problem was so I ended up taking screenshots of yesterdays crossword on the website that showed special instructions, and then a screenshot of the app that did not show the instructions in order to make them understand! (Obviously not crossword fans at the app)
So hopefully they will sort it!
I will post any update I get!
:-)