Chap who gives prisoners heart (3)

I believe the answer is:

son

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

'chap who' is the definition.
'Son' can be an answer for 'chap'. I am unsure of the rest of the definition.

'prisoners heart' is the wordplay.
'heart' indicates the central letters.
The centre of 'prisoners' is 'SON'.

'gives' acts as a link.

Can you help me to learn more?

(Other definitions for son that I've seen before include "Male offspring" , "Male child" , "Native" , "Heir" , "Human offspring" .)

I've seen this clue in the Evening Standard.

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