Usual trouble - get the answer but puzzled by the clue!
19 Down - Close friend, literally vacant (4),,,,,,PALLY..... but apart from the obvious - why?
17 Down - Absconder's flight to France at last (7).....ESCAPEE..... is the reference to France merely for the final E?
Too many other things worth worrying about I know, but it's buggin' me!