Unfavourable article on poetry (6)
I believe the answer is:
averse
'unfavourable' is the definition.
Both the definition and answer are adjectives. Maybe you can see an association between them that I can't see?
'article on poetry' is the wordplay.
'article' becomes 'a' (the indefinite article in English).
'on' says to put letters next to each other (in a down clue, letters appear on others).
'poetry' becomes 'verse' (lines written in verse).
'a'+'verse'='AVERSE'
Can you help me to learn more?
(Other definitions for averse that I've seen before include "Loath, reluctant" , "Metal rod; card game" , "Ill-disposed to (a poem?)" , "A line of poetry is opposed" , "Not keen" .)