Filling consultant starts to extend range through local newspaper (10)
I believe the answer is:
advertiser
'local newspaper' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'filling consultant starts to extend range through' is the wordplay.
'filling' is an insertion indicator.
'consultant' becomes 'adviser' (synonyms).
'starts to' indicates taking the first letters.
The first letters of 'extend range through' is 'ert'.
'adviser' going around 'ert' is 'ADVERTISER'.
Can you help me to learn more?
(Other definitions for advertiser that I've seen before include "Publicist" , "He pushes" , "who does the plugging" , "Part of a newspaper's title" , "One publicising a product (S, not Z)" .)