The silly Armenian finally broke free (5)

I believe the answer is:

inane

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'the silly' is the definition.
(inane means silly or foolish)

I cannot understand how the remainder of the clue works.

(Other definitions for inane that I've seen before include "unimaginitive" , "Stupid and silly" , "Vapid, fatuous" , "Puerile" , "Lacking sense, silly" .)

I've seen this clue in the Evening Standard.

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