Barrister (single) involved in dispute about pronunciation (5)
I believe the answer is:
scone
'involved in dispute about pronunciation' is the definition.
I can't tell whether this definition defines the answer.
'barrister single' is the wordplay.
'barrister' becomes 'sc' (I am not sure about this - if you are sure you should believe this answer much more).
'single' becomes 'one' (a single thing - only one).
'sc'+'one'='SCONE'
Can you help me to learn more?
(Other definitions for scone that I've seen before include "in which a stone was once found?" , "Accompaniment for tea" , "Unsweetened cake" , "Cream tea cake" , "A little cake" .)