Forced this person to take notice (4)
I believe the answer is:
made
'forced' is the definition.
(both can mean coerced)
'this person to take notice' is the wordplay.
'this person' becomes 'me' (the person writing).
'to take' means one lot of letters goes inside another (inserted letters are taken in).
'notice' becomes 'ad' (both can mean an advertisement).
'me' enclosing 'ad' is 'MADE'.
(Other definitions for made that I've seen before include "brought about" , "Performed" , "Constructed" , "Fabricated" , "Forced" .)