Bit of a shame to give two key elements away like that, isn't it?
Especially for people who take the trouble to work it out for themselves. The hints and nudges you often find even here are more acceptable imho. What's the point of having these prize xwords anymore otherwise? But that ground's been covered before and I suppose and there's no stopping it.
I have simply added the 6 missing encoded letters and am about to write a clue for the code word. I assume thta's what's required at the end.