Good-looking worker gets part (8)
I believe the answer is:
handsome
'good-looking' is the definition.
(synonyms)
'worker gets part' is the wordplay.
'worker' becomes 'hand' (hand is a kind of worker).
'gets' is a charade indicator (letters next to each other).
'part' becomes 'some' (I've seen this before).
'hand'+'some'='HANDSOME'
(Other definitions for handsome that I've seen before include "Pleasing in appearance" , "Fit" , "Fine-looking" , "Attractive, liberal" , "'Good-looking, as a man might be (8)'" .)