Another publication concerning children (7)
I believe the answer is:
reissue
'another publication' is the definition.
'reissue' can be an answer for 'publication' (reissue is a kind of publication). I am not sure about the 'another' bit.
'concerning children' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'children' becomes 'issue' (issue can mean someone's offspring).
're'+'issue'='REISSUE'
Can you help me to learn more?
(Other definitions for reissue that I've seen before include "Publication reprint" , "A second impression, perhaps" , "New edition of book" , "Bring out again" , "Publish again (books, records, etc)" .)