Location for Hamlet relies on fashion (8)
I believe the answer is:
elsinore
'location for hamlet' is the definition.
(I've seen this before)
'relies on fashion' is the wordplay.
'fashion' indicates an anagram.
'relies'+'on'='relieson'
'relieson' with letters rearranged gives 'ELSINORE'.
(Other definitions for elsinore that I've seen before include "Scene of Hamlet" , "Hamlet's home" , "Danish city" , "Tragic scene" , "place in Hamlet" .)