Aid to one's memory (8)
I believe the answer is:
reminder
(Other definitions for reminder that I've seen before include "Aide-mmoire" , "Memento" , "Nudge" , "note" , "Knot in handkerchief?" .)
I believe the answer is:
reminder
(Other definitions for reminder that I've seen before include "Aide-mmoire" , "Memento" , "Nudge" , "note" , "Knot in handkerchief?" .)