Crossword Genius

Weep on platinum vault (5)

Ross

I believe the answer is:

crypt

'vault' is the definition.
(I've seen this before)

'weep on platinum' is the wordplay.
'weep' becomes 'cry' (synonyms).
'on' is a charade indicator (letters next to each other).
'platinum' becomes 'pt' (chemical symbol).
'cry'+'pt'='CRYPT'

(Other definitions for crypt that I've seen before include "Burial vault" , "Underground church vault" , "Tomb" , "Underground chapel" , "Undeground room" .)

I've seen this clue in the Sydney Morning Herald.
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