Museum's shutters (7)

I believe the answer is:

louvres

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'museum's shutters' is the definition.
'louvres' can be an answer for 'shutters' (type of shutter on a building). I'm not sure about the 'museum's' bit.

'museum's shutters' is the wordplay.
'museum' becomes 'Louvre' (art museum in Paris).
'shutters' becomes 's' (this could be a standard abbreviation I've not previously seen).
'louvre'+'s'='LOUVRES'

Can you help me to learn more?

(Other definitions for louvres that I've seen before include "Slats" , "series of flaps" .)

I've seen this clue in The Telegraph.

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