Crossword Genius

Rest in peace as expired (4)

Ross

I believe the answer is:

ease

'rest' is the definition.
(I know that rest can be written as ease)

'in peace as expired' is the wordplay.
'in' indicates a hidden word.
'EASE' can be found hidden inside 'peace as expired'.

(Other definitions for ease that I've seen before include "Freedom from worry" , "Reduce (pain)" , "Calm" , "Leisure, comfort" , "Affluence" .)

I've seen this clue in The Sun and The Independent.
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