Head for Google: previous search one supposedly forgot quickly (8)

I believe the answer is:

goldfish

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

But I can't explain it at all! Could you help me understand?

(Other definitions for goldfish that I've seen before include "Popular piscine pet" , "Swimmer in a bowl" , "Fairground prize" , "Domestic pet with an approximate 11-second memory" , "Orange-red freshwater fish" .)

I've seen this clue in The Times.

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