Shouted about road bypass (6)
I believe the answer is:
roared
'shouted' is the definition.
(roaring is a kind of shouting)
'about road bypass' is the wordplay.
'about' indicates putting letters inside.
'bypass' becomes 're' (I am not sure about this - if you are sure you should believe this answer much more).
'road' going around 're' is 'ROARED'.
Can you help me to learn more?
(Other definitions for roared that I've seen before include "Yelled" , "Made long loud sound like lion" , "Bellowed, thundered" .)