Window-shop (6)
I believe the answer is:
browse
'window-shop' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for browse that I've seen before include "Surf (the Internet)" , "Examine cursorily" , "Look through in a random way, a book or shop, say" , "Survey" , "Read in a bookshop - graze" .)