Put on Medusa's form (7)

I believe the answer is:

assumed

'put on' is the definition.
(synonyms)

'medusa's form' is the wordplay.
'form' is an anagram indicator.
'medusas' with letters rearranged gives 'ASSUMED'.

(Other definitions for assumed that I've seen before include "Took (control)" , "Took (responsibility)" , "Taken for granted - feigned" , "Fancied" , "Affected; supposed" .)

I've seen this clue in The Globe and Mail.

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