Unsafe organ used for transplant (9)
I believe the answer is:
dangerous
'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'" .)