Heart transplant for uncle and me? (7)
I believe the answer is:
nucleus
'heart' is the definition.
(both can mean the centre of something)
'transplant for uncle and me?' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'uncle' is 'nucle' which is present in the answer.
'me?' could be 'us' ('us' can mean 'me' in some dialects) and 'us' is located in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for nucleus that I've seen before include "Central core of an atom" , "Central mass of a cell" , "atomic centre" , "Atom's core" , "hard core" .)