Possible Clues:

• A crossword person, I gather
• Vulcan, say, heading for metal heap? I'm amazed about it
• Clip more off setter
• See 23
• One assembling material from various sources
• Writer of document perhaps making PM recoil
• Lexicographer, maybe
• Come April, losing head could be a trickster
• Politician in twist about spinning? One must get things together
• One would gather that's all one does