Perfect thing drug peddler might admit? (5)
I believe the answer is:
ideal
'perfect' is the definition.
(similar in meaning)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for ideal that I've seen before include "Just perfect, couldn't be better" , "Standard of perfection or excellence" , "Perfect for the purpose" , "without a flaw" , "superb specimen" .)