Imaginative genre featured occasionally in Psychic Fair (3-2)

I believe the answer is:

sci-fi

I'm a little stuck... Click here to teach me more about this clue!

'imaginative genre' is the definition.
'sci fi' can be an answer for 'genre' (I've seen this before). I am not certain of the 'imaginative' bit.

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for sci-fi that I've seen before include "Doctor Who genre" , "Isaac Asimov genre" , "Space fiction" , "Fantasy genre based in the future" , "Space opera genre" .)

I've seen this clue in The Independent.

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