Flower, one wrapped up in beautiful mug (9)
I believe the answer is:
narcissus
'flower' is the definition.
(I know that Narcissus is a type of flower)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for narcissus that I've seen before include "He saw himself as most adorable" , "Flower of daffodil family" , "Variety of daffodil" , "In vain man" , "bloomer" .)