Short viral phenomenon in Brazil reflects life of the bookmaker (6)

I believe the answer is:

memoir

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

'life of the bookmaker' is the definition.
'memoir' can be an answer for 'life' (memoir is a kind of life). I am unsure of the 'of the bookmaker' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for memoir that I've seen before include "Personal biography" , "A personal historical account" , "Autobiography" , "Biographical sketch" , "Essay on a learned subject" .)

I've seen this clue in the Irish Times (Crosaire) and the Irish Times.

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