A pair point out ghost (10)

I believe the answer is:

apparition

'ghost' is the definition.
(thesaurus)

'a pair point out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'pair'+'point'='pairpoint'
'pairpoint' with letters rearranged gives 'pparition'.
'a'+'pparition'='APPARITION'

(Another definition for apparition that I've seen is " Ghost".)

I've seen this clue in The Telegraph.

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