Possible Clues:

• Scruple I suffered, taking vestment
• Sounds like more than is needed to get on in church (8)
• White vestment
• Helping out rector dividing up his gear
• White vestment worn over a cassock
• There is too much of it, by the sound of it, going on in the Church
• Loose white ecclesiastical garment
• Clerical garment
• Ecclesiastical gown
• Choirboy's clothing not necessary, say!