Mundane master, so it appears, inspiring article (7)
I believe the answer is:
prosaic
'mundane' is the definition.
(I've seen this before)
'master so it appears inspiring article' is the wordplay.
'master' becomes 'pro'.
'so it appears' becomes 'sic' (shows an error has been quoted word-for-word).
'inspiring' indicates putting letters inside.
'article' becomes 'a' (indefinite article).
'sic' placed around 'a' is 'saic'.
'pro'+'saic'='PROSAIC'
(Other definitions for prosaic that I've seen before include "Dull - pedestrian" , "routine" , "Matter-of-fact" , "Pedestrian, unimaginative" , "Is a crop (anag) - unimaginative" .)