Possible Clues:

• Catch with line at sea in accordance with strict rules
• Type of college in Switzerland a client freely describes
• Catch with line configured like a sort of hitch?
• Let China clay initially be moulded by expert
• Demanding specialist skill
• Scientific detective left with broken china
• Specialist used it with chancel refurbishment
• Fixing chain etc on wheel finally is complex
• Neat and chic, with varying length in a strict sense
• Industrial engineer can tile outside of church