Child brings back ten lines of verse (6)
I believe the answer is:
sonnet
'verse' is the definition.
(I know that sonnet is a more specific form of the action the verse)
'child brings back ten lines' is the wordplay.
I cannot quite understand how this works, but
'child' could be 'son' (male child) and 'son' is found within the answer.
an anagram of 'ten' is 'net' which is located in the answer.
No letters remain.
This explanation may well be incorrect...
'of' acts as a link.
Can you help me to learn more?
(Other definitions for sonnet that I've seen before include "Form of poem" , "Fourteen line poem" , "The poem was sent on" , "Short poem with 14 lines" , "Fourteen-line poem" .)