Crossword Genius

Not a fan of Sherlock Jr — or my aim, it is not true! (3,8)

Ross

I believe the answer is:

jim moriarty

'not a fan of sherlock' is the definition.
(villain in the BBC's Sherlock )

'jr or my aim it is not true' is the wordplay.
'is not true' indicates an anagram (a false or wrong spelling of the letters).
'jr'+'or'+'my'+'aim'+'it'='jrormyaimit'
'jrormyaimit' is an anagram of 'JIM MORIARTY'.

I've seen this clue in The Guardian.
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