Good-looking worker, so attached to me (8)
I believe the answer is:
handsome
'good-looking' is the definition.
('handsome' can be a synonym of 'good-looking')
'worker so attached to me' is the wordplay.
'worker' becomes 'hand' (hand is a kind of worker).
'attached to' is a charade indicator (letters next to each other).
'hand'+'so'+'me'='HANDSOME'
(Other definitions for handsome that I've seen before include "Fit" , "large" , "Attractive, liberal" , "Good-looking or generous" , "Pleasing to see" .)