Crossword Genius

Copper linked with exquisite poison (6)

Ross

I believe the answer is:

curare

'poison' is the definition.
(curare is a poisonous plant)

'copper linked with exquisite' is the wordplay.
'copper' becomes 'cu' (Cu is the chemical symbol for copper).
'linked with' is a charade indicator (letters next to each other).
'exquisite' becomes 'rare'.
'cu'+'rare'='CURARE'

(Other definitions for curare that I've seen before include "Paralysing plant poison" , "Arrow poison" , "Poison used on darts" , "Poison put on arrows" , "Poison applied to darts" .)

I've seen this clue in The Telegraph.
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