11d A caravanning retiree is known as a grey N???d
17a the sort of Adventist you get at the end of the week ?e?e?o? Day (7-3)
40a Archaic word for p;ease P?i?h?e (7)
42a Pacino telling fibs about taking sides A/l?ing (7)
11d Could be nomad, not too sure, it's an American phenomenon.
17a sounds like seventh, check the other letters
40a If it's an archaic word for please prithee.
42a Don't know sorry.