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Advertiser’s rate for feature during sci-fi show? (10)

Ross

I believe the answer is:

hyperspace

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'feature during sci-fi show?' is the definition.
I can't tell whether this definition defines the answer.

'advertiser's rate' is the wordplay.
'advertiser's' becomes 'hypers' (I can't justify this - if you can you should believe this answer much more).
'rate' becomes 'pace' (pace is a kind of rate).
'hypers'+'pace'='HYPERSPACE'

'for' is the link.

Can you help me to learn more?

(Other definitions for hyperspace that I've seen before include "Region with more than three dimensions" , "(In sci-fi) the fourth dimension" , "Imagined environment with more than three dimensions" , "An area of sci-fi" .)

I've seen this clue in The Times.
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