plot device in mythology and fiction

QUEST
List of words for the clue plot device in mythology and fiction from the crossword:
GODDESS ACRE UMA NORSE EDDA AHAB TWIST EDEN CABAL ODIN SCHEME ATM AMNESIA ARGO BED ERLE IRONY PULP RADAR NIOBE
WordClue
GAGdevice designed to prevent speech
PINfastening device
BELLsound-making device
BUOYfloating device
PULP... Fiction (film)
LASERoptical device
MATCHdevice for lighting fires
METERdevice that measures things
SCREWdevice that has a helical function
MEDUSAmonster from Greek mythology
STOCKSrestraint and punishment device
BANSHEEfemale spirit in Irish mythology
GODDESSvenus (mythology) or ceres (mythology)
GODLOREmythology
STORYLINEplot
CONSPIRACYplot
THEODOLITEoptical device
PHOTOCOPIERdevice for reproducing documents
THERMOMETERdevice to measure temperature
REFRACTOMETERoptical device
CONSPIRACYplot
RUSEploy