Write a commentary, but not in a neat arrangement (8)
I believe the answer is:
annotate
'write a commentary' is the definition.
'annotate' can be an answer for 'write' (annotating is a kind of writing). I'm unsure of the 'a commentary' bit.
'not in a neat arrangement' is the wordplay.
'in' indicates putting letters inside.
'arrangement' indicates an anagram.
'a'+'neat'='aneat'
'aneat' is an anagram of 'anate'.
'not' inserted inside 'anate' is 'ANNOTATE'.
'but' acts as a link.
Can you help me to learn more?
(Other definitions for annotate that I've seen before include "Mark" , "Add notes to (text)" , "Supply explanatory notes" , "Add explanations and comments to (a text)" , "Write down comments on" .)