The child is named (5)
I believe the answer is:
issue
'the child' is the definition.
(I've seen this before)
'is named' is the wordplay.
'named' becomes 'sue' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'is'+'sue'='ISSUE'
Can you help me to learn more?
(Other definitions for issue that I've seen before include "Matter for discussion" , "Subject, result, or publication" , "Point in dispute" , "Children; put out" , "Major topic for debate" .)