Polish area of Shoreditch (4)
I believe the answer is:
edit
'polish' is the definition.
(I've seen this in another clue)
'area of shoreditch' is the wordplay.
'area of' indicates the answer is hidden within the clue (I've seen this in other clues).
'EDIT' is hidden in the letters of 'shoreditch'.
(Other definitions for edit that I've seen before include "Supervise - amend" , "Manage a newspaper" , "Rework (text)" , "Amend text" , "be a bookmaker" .)