A gallery in this State (4)
I believe the answer is:
tate
'a gallery' is the definition.
(Tate Modern, Tate Britain etc)
'this state' is the wordplay.
'TATE' is hidden within the letters.
However, I am unsure how this is indicated.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for tate that I've seen before include "famous art gallery beside London's Thames" , "art patron" , "Sugar refiner and art gallery founder, d. 1899" , "Art gallery founded by sugar magnate" , "Britain/Modern gallery" .)