Kitty accommodates English writer (4)
I believe the answer is:
Here is my best explanation:
'writer' is the definition.
(poet is a kind of writer)
'kitty accommodates english' is the subsidiary indication.
'kitty' becomes 'pot' ('pot' can be a synonym of 'kitty').
'accommodates' is an insertion indicator.
'english' becomes 'e' (abbreviation).
'pot' placed around 'e' is 'poet'.
(Other definitions for poet that I've seen before include "Bard", "Maker of verses", "Tope with a versifier", "Writer in verse form", "Writer such as Ogden Nash", "Versifier", "Verse writer", "Eg, Keats or Auden", "'Paul Muldoon or Paula Meehan, say (4)'" and "Rhymer".)