Yet all great abstract works are exhibited here (4,7)
I believe the answer is:
'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.
'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" .)