To write endless poetry and to be tasteful and refined (7)
I believe the answer is:
elegant
'refined' is the definition.
(I know that refined can be written as elegant)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for elegant that I've seen before include "A gentle way to be stylish" , "Well-dressed" , "Refined and dignified in appearance" , "Gracefully stylish" , "Handsome" .)