Possible Clues:

• The unaspirated will get it in the neck with them, just for a change
• Changes, makes different
• Rehems, maybe
• The sound of them in church as one gets change out of them
• That makes a change for Slater
• They're all for a change in church, by the sound of it
• Shifts
• Sounds as if they're holy, but one changes all that
• Sounds like what the churches haven, but all the same it's not
• The cockney may get them in the neck for a change