Possible Clues:

• Custom - costume
• With heroin, just some can cause addiction
• Acquired pattern of behavior
• Dress - custom - practice
• Custom or monk's robe
• Can one break even a little of it at last?
• Husband rather displaying a uniform response
• Worn on the steed or in the church, but not much in the end
• Repeated behaviour had reduced a little
• Custom, nun's wear