Is a girl to write the edition (5)
I believe the answer is:
issue
'write the edition' is the definition.
'issue' can be an answer for 'write' (issuing is a kind of writing). I'm not certain of the 'the edition' bit.
'is a girl' is the wordplay.
'a girl' becomes 'sue' (girl's name).
'is'+'sue'='ISSUE'
'to' is the link.
Can you help me to learn more?
(Other definitions for issue that I've seen before include "Question in dispute to be settled" , "The children to come forth" , "Topic; send out" , "Result - children" , "Matter for discussion" .)