Appearance of a ghost (13)

I believe the answer is:

manifestation

'appearance of a ghost' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for manifestation that I've seen before include "Demonstration" , "Symptom (of an ailment)" , "Display" , "Appearance of a ghost" , "Ghostly appearance" .)

I've seen this clue in The Times.

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