Top of ebony, part of table worker polished (7)
I believe the answer is:
elegant
'polished' is the definition.
(thesaurus)
'top of ebony part of table worker' is the wordplay.
'top of' indicates taking the first letters.
'part of table' becomes 'leg' ('leg' is part of 'table').
'worker' becomes 'ant' (worker is a type of ant).
The first letter of 'ebony' is 'e'.
'e'+'leg'+'ant'='ELEGANT'
(Other definitions for elegant that I've seen before include "Fine" , "Gracefully stylish" , "Teen gal (anag.)" , "Modish" , "Dignified and graceful" .)