Crossword Genius

Unsafe organ used for transplant (9)

Ross

I believe the answer is:

dangerous

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'unsafe organ used for transplant' is the definition.
I can't tell whether this definition defines the answer.

'unsafe organ used' is the wordplay.
'unsafe' is an anagram indicator.
'organ'+'used'='organused'
'organused' is an anagram of 'DANGEROUS'.

Can you help me to learn more?

(Other definitions for dangerous that I've seen before include "posing risk" , "likely to blow up" , "Not safe" , "High-risk" , "Pope: 'A little learning is a . . . . . . . . . thing'" .)

I've seen this clue in The Sun.
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