Fantasising about a Chinese dynasty at end of day (8)
I believe the answer is:
dreaming
'fantasising' is the definition.
(I've seen this before)
'about a chinese dynasty at end of day' is the wordplay.
'about' becomes 'rea' (I've seen this in other clues).
'a chinese dynasty' becomes 'ming' (I've seen this before).
'at end of' is a charade indicator (letters next to each other).
'day' becomes 'd'.
'rea'+'ming'='reaming'
'reaming' after 'd' is 'DREAMING'.
(Other definitions for dreaming that I've seen before include "In reverie" , "Fantasising" , "Experiencing while sleeping" , "'I'm ... of a white Christmas' (song)" , "form of idealism?" .)