Chap who gives prisoners heart (3)
I believe the answer is:
'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" .)