Extraordinarily stole all of the art from Baltimore that was capable of being moved (6)

I believe the answer is:

mobile

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'art from baltimore that was capable of being moved' is the definition.
'mobile' can be an answer for 'art' (mobile is a kind of art). I am unsure of the remainder of the definition.

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for mobile that I've seen before include "Flexible" , "Able to move about like modern phone" , "that may be suspended" , "Able to move freely" , "For European this is a handy" .)

I've seen this clue in The Irish Times.

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