Variety of rose-red screen (7)
I believe the answer is:
reredos
'screen' is the definition.
(a reredos is an ornamental screen)
'variety of rose-red' is the wordplay.
'variety of' indicates an anagram.
'rose'+'red'='rosered'
'rosered' with letters rearranged gives 'REREDOS'.
(Other definitions for reredos that I've seen before include "Hanging in church" , "Wall decoration behind altar" , "Red rose could show a screen behind the altar" , "Church feature" , "Fireback" .)