Screen Spanish couple about twice beforehand (7)
I believe the answer is:
reredos
'screen' is the definition.
(a reredos is an ornamental screen)
'spanish couple about twice beforehand' is the wordplay.
'spanish couple' becomes 'dos-' ('two' in Spanish).
'about' becomes 're' ('re' means regarding or about).
'twice' shows that letters should be duplicated.
'beforehand' is a charade indicator (letters next to each other).
're' doubled is 'rere'.
'dos' after 'rere' is 'REREDOS'.
(Other definitions for reredos that I've seen before include "Red rose could show a screen behind the altar" , "Fireback" , "Ornamental screen behind a church altar" , "Back of fireplace" , "Painted screen behind an altar" .)