Element in UN put me off (9)

I believe the answer is:

neptunium

'element' is the definition.
(I've seen this before)

'in un put me off' is the wordplay.
'off' indicates an anagram.
'in'+'un'+'put'+'me'='inunputme'
'inunputme' with letters rearranged gives 'NEPTUNIUM'.

(Other definitions for neptunium that I've seen before include "Radioactive metal" , "scarce chemical" , "Element named after planet" .)

I've seen this clue in The Times.

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