Young man gambles for enjoyment essentially (3)

I believe the answer is:

boy

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'young man' is the definition.
(a boy is a male child)

'gambles for enjoyment essentially' is the wordplay.
'gambles for' becomes 'bo' (I can't justify this - if you can you should believe this answer much more).
'essentially' says to take the centre.
The middle of 'enjoyment' is 'y'.
'bo'+'y'='BOY'

Can you help me to learn more?

(Other definitions for boy that I've seen before include "Youth" , "Male child" , "Young man" , "Lad" , "Son" .)

I've seen this clue in The Independent.

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