If I have 20ac correct, the enumeration (5,3) applies to the transmuted version, whereas the solution to the clue before transmutation is just (8). Hopefully this may help.
As others above, I have more than one possible transmuted version for 6dn and 7dn. I also have two possibilities at 14ac. The crossword editor is now aware of this situation, so some announcement may ensue about how this may be resolved in terms of which entries will be deemed correct.