Sufferer’s energy conserved by citrin regularly (6)

I believe the answer is:

victim

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

I can't explain the rest of the clue.

(Other definitions for victim that I've seen before include "Person who suffers accident or crime" , "Casualty, injured party" , "Casualty of a crime" , "sacrificed animal" , "One suffers from adverse circumstances" .)

I've seen this clue in The Hindu.

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