Possible Clues:

• Almost all the eleven working in a joint
• Joint part (with mortise)
• A number working to secure projection
• Catch up on what goes in for the carpenter
• This fits in mortise
• Goes in to amortise this
• Saw to it that one had nothing to land one's fish with up there
• Part of joint a music group set up
• Type of small saw
• Nonet (anag.)