Yet all great abstract works are exhibited here (4,7)
I believe the answer is:
tate gallery
'works are exhibited here' is the definition.
The definition suggests a singular noun which matches the answer.
'yet all great abstract' is the wordplay.
'abstract' is an anagram indicator.
'yet'+'all'+'great'='yetallgreat'
'yetallgreat' with letters rearranged gives 'TATE GALLERY'.
Can you help me to learn more?
(Other definitions for tate gallery that I've seen before include "Artistic collection" , "London art establishment (renamed in 2000)" , "Art repository" , "place for viewing art" .)