Modify commercial article, going over point (5)
I believe the answer is:
adapt
'modify' is the definition.
(thesaurus)
'commercial article going over point' is the wordplay.
'commercial' becomes 'ad'.
'article' becomes 'a' (indefinite article).
'going over' is a charade indicator (letters next to each other).
'point' becomes 'pt'.
'ad'+'a'+'pt'='ADAPT'
(Other definitions for adapt that I've seen before include "Make fit" , "Change to suit a different purpose" , "Adjust (to changes)" , "get used?" , "match" .)