Something to discuss in publication (5)
I believe the answer is:
issue
This clue is a double definition.
'something to discuss' is the first definition.
(I've seen this before)
'publication' is the second definition.
(synonyms)
'in' acts as a link.
(Other definitions for issue that I've seen before include "Children, offspring" , "Offspring or edition" , "Result - children" , "Edition of a publication" , "Important topic for debate" .)