The term 'stashed away' can be described by the crossword solutions of CACHED, stored, hid, and SECRETED. CACHED is a verb meaning to store something away for future use. Stored is also a verb meaning to put something away in a safe place. Hid is a verb meaning to conceal something from view. SECRETED is a verb meaning to hide something away in a secret place. All of these words describe the action of stashing something away.