English play around island (4)
I believe the answer is:
eyot
'island' is the definition.
(I know that eyot is a type of river island)
'english play around' is the wordplay.
'english' becomes 'e' (abbreviation).
'play' becomes 'toy' (synonyms).
'around' says the letters should be written backwards.
'toy' back-to-front is 'yot'.
'e'+'yot'='EYOT'
(Other definitions for eyot that I've seen before include "Fawlty Towers waiter" , "There's one at Chiswick" , "isle" , "land in the river" , "Small river island" .)