Angled slat used in famous museum (6)
I believe the answer is:
louvre
This could be a double definition.
'angled slat' is the first definition.
'louvre' can be an answer for 'slat' (louvre is a kind of slat). I am not sure about the 'angled' bit.
'famous museum' is the second definition.
'louvre' can be an answer for 'museum' (art museum in Paris). I am not sure about the 'famous' bit.
'used in' is the link.
Can you help me to learn more?
(Other definitions for louvre that I've seen before include "Great art gallery in Paris" , "Great art museum-gallery in Paris" , "National art gallery of France, in Paris" , "Parisian landmark - slat" , "that's normally closed during the winter?" .)