A gentle shake showing refinement (7)
I believe the answer is:
'a gentle shake showing refinement' is the definition.
I can't judge whether this definition defines the answer.
'a gentle shake' is the wordplay.
'shake' indicates anagramming the letters.
'agentle' with letters rearranged gives 'ELEGANT'.
Can you help me to learn more?
(Other definitions for elegant that I've seen before include "Well-dressed" , "Gracefully stylish" , "Handsome" , "Fine" , "Stylish in appearance, a gentle kind" .)