Possible Clues:

• 'Preach it!'
• ''Amen!''
• PC in seaside resort doffing cap
• Conservatives working to be with it
• Not left off? Absolutely correct
• PC's sardonic-sounding expression, largely
• PC to keep submitting reports verbally?
• Socially relevant, clever, but not initially working
• "Amen, brother!"
• Morally trendy equivalents of Reverend's initial letter or two