Clever Clue Nominees

Please vote for the best clue from November (either by email or comments below). The Clever Clue of the Month will be announced on Tuesday.

Marine mollusk exoskeleton vendor, in a 

tongue twister?.........................SHE

Useful cryptography tool to have on 

hand?...................................DECODERRING

It's impressed when people lie?.........MEMORYFOAM

Some needlework.........................ACUPUNCTURE

Rattling adders.........................ABACI

What gives authors stress?..............ITALICS