Guardian Genius No 48 by Monk

[Shivster]

Not sure if anyone else has posted on this yet, I've done a search but can't find anything.

The clues seem fairly straightforward but I have no idea what the special instructions mean.

"In filling the grid, solvers must note down one-dimensional changes to Guardian Genius. Only the original version does not change."

Can someone give me a clue?

(For those who are wondering - the Guardian Genius is available to online subscribers)

[Quizmonster]

Think of the unkind name often given to The Guardian because of its supposed excess of mis-spellings. Now compare that name with the real one. This provides the code-system you must use to alter answers before entry into the grid.

[Quizmonster]

I should have pointed out above that the unkind name comes from the eight 'extra' letters referred to in the rubric.

[Shivster]

Wasn't that last month's?

[Quizmonster]

My apologies for that, Shivster. Normally, when I complete the Genius, I put it in the desk drawer and throw away its predecessor. Clearly what I did this time was throw away the new one and keep the old!
I've just gone back to the web-page and recognise the clues...1A sculptress...1D shoe and so on...but I can't for the life of me remember what I did as regards filling the grid in or even whether I did send it off.
I must be getting too old for this sort of thing. If I have time later, I may go back and fill it in again to see whether that jogs my memory.
Again my apologies.

[Shivster]

:D No worries Quizmonster, thanks for your response anyway

[Quizmonster]

Four days later, so I don't know whether you are still working on the Guardian Genius puzzle, Shivster. I did finally have a chance to look at it and what must have happened earlier to my copy was that I got a few answers on first looking through them but then put it aside. Thereafter, it got lost, as I suggested.
However, I have now had a chance to complete it and I think I've - sort of - got the answer as to how the grid must be completed.
As you know, there are certain letter-clashes, such as the 'O' in 1 D with the 'G' in 9A. I have found 13 of these. Now, there are 14 letters in the words 'GUARDIAN GENIUS' and the clashing pairs I've found are G/O, U/A, A/E, R/D, D/I, ?/?, A/E, N/O...G/S, E/I, N/I, I/E, U/N, S/L. If you look at the opening letters of these, you'll see that they spell 'GUARD?AN GENIUS. Sadly, I can't find the missing 'I'! (Other ways of selecting the sequence also exist, of course, so maybe it's not an 'I'.)
My assumption, therefore, is that the 1D/9A slot, for example, should contain the 'G' and not the 'O', because there is no 'O' in the two words I suspect are key to the solution. The same basic rule should apply elsewhere, I imagine.

Perhaps the above is all absolute nonsense and you yourself have solved it in an utterly different - and correct - way. If so, do tell! Cheers