Eastern girl's shoulder piece (9)
I believe the answer is:
epaulette
'shoulder piece' is the definition.
(I've seen this before)
'eastern girl's' is the wordplay.
'eastern' becomes 'e' ().
'girl' becomes 'paulette' (girl's name).
'e'+'paulette'='EPAULETTE'
(Other definitions for epaulette that I've seen before include "Ornamental shoulder pad" , "Shoulder decoration" , "Flashing of the shoulder" , "Military decoration" , "flashy pad" .)