Short article for one sitting in dodgy settee (9)
I believe the answer is:
essayette
'short article' is the definition.
The definition suggests a singular noun which matches the answer.
'for one sitting in dodgy settee' is the wordplay.
'for one' becomes 'say' (both can mean 'for example').
'sitting in' indicates putting letters inside.
'dodgy' indicates an anagram (a dodgy or wrong order of the letters).
'settee' with letters rearranged gives 'esette'.
'say' inserted within 'esette' is 'ESSAYETTE'.
Can you help me to learn more?
(Another definition for essayette that I've seen is " Minor composition".)