I don't often do this but am left with 2 to solve. The setter is Virgilius - could anyone tell me whether Virgilius is American?
The clues:
4d - American actor, English statesman (4) I
think that I have -I-T
and 26d - Less than total belief in American language (4) c-e- (I thought that this might be 'cred'??) No, I see now that it should be Cree!