Trinidadian pop? (3)

I believe the answer is:

dad

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'pop?' is the definition.
(both can mean one's father)

'trinidadian' is the wordplay.
'DAD' is hidden within the letters.
But, I am unsure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for dad that I've seen before include "Pa" , "Mum's mate" , "Old man" , "Pop, pater" , "Papa" .)

I've seen this clue in the Evening Standard.

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