A southern English article (3)
I believe the answer is:
the
'english article' is the definition.
(I've seen this in another clue)
'a southern' is the wordplay.
'THE' is hidden in amongst the letters.
But, I am uncertain how this is indicated.
Can you help me to learn more?
(Other definitions for the that I've seen before include "Born - - - - - - - - (carol)" , "Base of ever-expanding nursery rhyme" , "Last words of story" , "That particular one" , "See 10 Across" .)