Surviving text sent about article (6)
I believe the answer is:
extant
'surviving' is the definition.
(similar in meaning)
'text sent about article' is the wordplay.
'sent' is an anagram indicator (send can mean to excite or stimulate).
'about' means one lot of letters goes inside another.
'article' becomes 'an' (indefinite article).
'text' with letters rearranged gives 'extt'.
'extt' placed around 'an' is 'EXTANT'.
(Other definitions for extant that I've seen before include "Still going strong" , "still alive" , "Net tax still existing, not gone" , "Still in existence, surviving" , "left" .)