Stick with commercial at this point (6)
I believe the answer is:
adhere
'stick' is the definition.
('adhere' can be a synonym of 'stick')
'with commercial at this point' is the wordplay.
'with' says to put letters next to each other.
'commercial' becomes 'ad'.
'at this point' becomes 'here' (I've seen this before).
'ad' put next to 'here' is 'ADHERE'.
(Other definitions for adhere that I've seen before include "Stick to, cling" , "Stick firmly" , "Stick with header" , "Keep" , "Header (anag)" .)