Possible Clues:

• Gather there's little room after turning round in bed
• How people in America may be called for prayer
• Part of service - mass
• Send the plate around with a prayer
• It's not only this that you'd pass the plate around for in church (7)
• A prayer for what one does with the offertory
• A mass or just a short prayer!
• Assemble - a short prayer
• Pick up - part of service
• Amass; a prayer