Resting place for keys (3)
I believe the answer is:
bed
'resting place' is the definition.
(where you can sleep or rest)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for bed that I've seen before include "Bottom < layer" , "Couch" , "might be laid here" , "e.g. Four-poster" , "Bottom of the sea or river" .)