Greek character brought in ordinary flower (6)
I believe the answer is:
orchid
'flower' is the definition.
(I know that orchid is a type of flower)
'greek character brought in ordinary' is the wordplay.
'greek character' becomes 'chi' (letter from the Greek alphabet).
'brought in' indicates putting letters inside.
'ordinary' becomes 'ord' (I can't explain this - if you can you should believe this answer much more).
'chi' placed into 'ord' is 'ORCHID'.
Can you help me to learn more?
(Other definitions for orchid that I've seen before include "Flowering plant with bee and lady varieties" , "Tropical flowering plant" , "Exotic flower with strong perfume" , "Lush and expensive tropical flower" , "Expensive, perfumed flower" .)