Possible Clues:

• Move away without warning
• Parking for staff in America for shift
• Change (address, job etc) (informal)
• Move away quickly as it's not down to a couple of the staff?
• Move to London? Don't move south
• Make off
• Unionist chooses to embrace extremists in secret and live elsewhere
• Move towards source of underworld river, so to speak
• In our party, the onset of political correctness marks move away
• Increases credit limit? Singular move