Queen standing up -- better go over (5)
I believe the answer is:
recap
'go over' is the definition.
(I've seen this before)
'queen standing up better' is the wordplay.
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'standing up' says the letters should be written backwards (in a down clue up is reverse order).
'better' becomes 'cap' (I've seen this before).
'er' backwards is 're'.
're'+'cap'='RECAP'
(Other definitions for recap that I've seen before include "Summary (abbr.)" , "Provide summary" , "Go over things again" , "Go over again in the mind" , "Summarise (colloq.)" .)