Speak of dated setting (5)
I believe the answer is:
scene
'setting' is the definition.
(I've seen this in another clue)
'speak of dated' is the wordplay.
'speak of' shows a homophone (sound like) (I've seen 'speak' mean this).
'dated' becomes 'seen' (I've seen this in another clue).
'seen' sounds like 'SCENE'.
(Other definitions for scene that I've seen before include "Part of a 16" , "site" , "Subdivision of a drama" , "Division of a play" , "Subdivision of act in play" .)