Thinks five hundred seem confused (5)

I believe the answer is:

deems

'thinks' is the definition.
(I've seen this in another clue)

'five hundred seem confused' is the wordplay.
'five hundred' becomes 'd' (Roman numeral for 500).
'confused' indicates an anagram.
'seem' with letters rearranged gives 'eems'.
'd'+'eems'='DEEMS'

I've seen this clue in The Irish News.

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