Writing supporting southeast (5)

I believe the answer is:

prose

'writing' is the definition.
(I've seen this in another clue)

'supporting southeast' is the wordplay.
'supporting' becomes 'pro' (I've seen this in another clue).
'southeast' becomes 'SE' (synonyms).
'pro'+'se'='PROSE'

(Other definitions for prose that I've seen before include "Ordinary spoken or written language" , "Non-verse" , "Literary genre" , "Gossipy talker" , "Not poetry" .)

I've seen this clue in The Times.

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