I have fathomed all the 34 across letters, and 45 down letters, and not used any of them to fill the grid that will be shown as the “answer” in a fortnight ?
dfg2, the sides used to complete the grid are in addition to those derived from the letters, but in the same 'formation'.
If you mean the 'answer' mentioned in the final sentence, it refers to a grid entry derived from the original clues.