Crossword Genius

Does he go _pop-pop”? (4)

Ross

I believe the answer is:

papa

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'does he' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'pop-pop?' is the wordplay.
'pop' becomes 'pa' (both can mean father).
'pop?' becomes 'pa' (both can mean father).
'pa'+'pa'='PAPA'

'go' is the link.

Can you help me to learn more?

(Other definitions for papa that I've seen before include "Mama's other half?" , "Comms code for 'P'" , "Father; letter P" , "Dad" , "The old man" .)

I've seen this clue in the Evening Standard.
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