It's used to study the ear and scoop urea out (9)

I believe the answer is:

auroscope

'it's used to study the ear' is the definition.
(I know that an auroscope is used to examine the ear)

'scoop urea out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'scoop'+'urea'='scoopurea'
'scoopurea' is an anagram of 'AUROSCOPE'.

'and' acts as a link.

I've seen this clue in The Guardian.

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