Answer:

MARPLE

Answer	Crossword Clue
MARPLE	Christie sleuth
MARPLE	Christie detective
MARPLE	Christie's Miss

MARPLE	Christie spinster
MARPLE	Christie heroine
MARPLE	Agatha's Miss Jane
MARPLE	Christie's Miss Jane
MARPLE	Christie crime solver
MARPLE	Christie's spinster detective
MARPLE	Fictional detective
MARPLE	"The Mirror Crack'd" sleuth

MARPLE	Christie character
MARPLE	Christie's Miss ...
MARPLE	Christie's Jane ...
MARPLE	Famous Tuesday Club member
MARPLE	Miss of mystery
MARPLE	Agatha Christie sleuth Jane
MARPLE	Miss ...
MARPLE	"A Pocket Full of Rye" sleuth

MARPLE	Sleuth from Saint Mary Mead