Possible Clues:

• "Oh, shush!"
• Bring to a conclusion nevertheless, proceeding very quickly
• Is it not tub to make it a close thing?
• Make fast, not tub
• Keep quiet and finish off properly
• Fasten this, not the cask
• It isn't the tub that's overturned. Make it fast
• Not the sort of cask, perhaps, you can make fast (6, 2)
• So to make one fast will not get one down, not tub up
• Close, as a jacket