A bit of an accent, but much less than she would have expected.
Well haven't really got much of an accent at all have I?
No but he has got a bit of an accent.
I had no idea what kind of accent it was.
He had some kind of accent that made it difficult to understand him.
"Could you tell what sort of an accent he had?"
He noticed she had lost some of her accent in the past few minutes.
She says a guy with some kind of heavy accent dropped it off.
His voice was very deep, without a trace of accent.
His voice was deep with no trace of an accent.