Magician in exhibition centre along with storyteller (11)

I believe the answer is:

necromancer

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'magician' is the definition.
(I know that magician can be written as necromancer)

'exhibition centre along with storyteller' is the wordplay.
'exhibition centre' becomes 'NEC' (National Exhibition Centre).
'along with' means one lot of letters go next to another.
'storyteller' becomes 'romancer' (I can't explain this - if you can you should believe this answer much more).
'nec'+'romancer'='NECROMANCER'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for necromancer that I've seen before include "Black artist" , "Sorcerer" , "Madame Arcati" , "magician" .)

I've seen this clue in The Telegraph.

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