About repeating Spanish couple on screen (7)
I believe the answer is:
reredos
'screen' is the definition.
(a reredos is an ornamental screen)
'about repeating spanish couple on' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'repeating' indicates the doubling of some letters.
'spanish couple' becomes 'dos-' ('two' in Spanish).
'on' says to put letters next to each other.
're' doubled is 'rere'.
'rere'+'dos'='REREDOS'
(Other definitions for reredos that I've seen before include "Fireback" , "Painted screen behind an altar" , "Wall decoration behind altar" , "Back of fireplace" , "Church feature" .)