Safe (6)
'safe' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for secure that I've seen before include "Incapable of being tampered with" , "Make safe or fasten" , "Peg" , "properly restrained" , "Free from danger or risk" .)
'safe' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for strongbox that I've seen before include "security device at museum?" , "Store for valuables" , "Safe" , "Container for valuables" .)
'safe' is the definition.
(I've seen this before)
This is all the clue.
'safe' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for unharmed that I've seen before include "Not injured or damaged" , "not wounded" .)
'safe' is the definition.
(associated in meaning)
This is the entire clue.
(Other definitions for harmless that I've seen before include "Completely safe" , "Not producing any toxic effects" , "Not injurious" , "Innocuous, innocent" , "Causing no damage" .)