Pass on support for each reporter's way of making progress (9)
I believe the answer is:
propagate
'pass on' is the definition.
(propagating is a kind of passing on)
'support for each reporter's way of making progress' is the wordplay.
I cannot really understand how this works, but
'support' could be 'prop' (prop up can mean to support) and 'prop' is found in the answer.
'way' could be 'gate' (I've seen this in other clues) and 'gate' is found within the answer.
A single letter 'a' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for propagate that I've seen before include "Develop" , "Breed from parent stock" , "Increase by natural process" , "Promote (an idea) widely" , "widely spread" .)