Window-frame in Odessa shines (4)
I believe the answer is:
sash
'window-frame' is the definition.
(I've seen this before)
'in odessa shines' is the wordplay.
'in' indicates the answer is hidden within the clue.
'SASH' is hidden within 'odessa shines'.
(Other definitions for sash that I've seen before include "Window frame; silk band" , "Style of window" , "Brown bread for waist or shoulder" , "Sliding window frame" , "Band - scarf" .)