13ac Roman historian's account suppressed by emperor.
It must be "tacitus" ( a Roman historian), but I don't see why.
Also the critical clue 24ac ...12 in Latin and 12 in English (one 12 back to a 100) (5)
I have the answer (which I won't give, to avoid spoiling the crossword for others who haven't got this far) but, apart from the cross-references, I have no idea why. Any
HINTS on this one, please.