He’s more than a darling (4)
I believe the answer is:
pete
'he's more than a darling' is the definition.
The definition suggests a singular noun which matches the answer.
'he's more than a darling' is the wordplay.
'he's' becomes 'e' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'more than' means one lot of letters go next to another.
'a darling' becomes 'pet' ('pet' can be a synonym of 'darling').
'e' put after 'pet' is 'PETE'.
Can you help me to learn more?
(Other definitions for pete that I've seen before include "- Doherty, Babyshambles singer" , "- Sampras, tennis star" , "- Seeger, US folk singer" , "Small 14 [PETER JONES]" , "-- Sampras, tennis ace" .)