To get around canvassing embargo, Norm drew in the street (9)
I believe the answer is:
barnstorm
'drew in the street' is the definition.
I can't tell whether this defines the answer.
'to get around canvassing embargo norm' is the wordplay.
'to get around' indicates putting letters inside.
'canvassing' becomes 'st' (I can't justify this - if you can you should believe this answer much more).
'embargo' becomes 'bar'.
'bar'+'norm'='barnorm'
'st' inserted within 'barnorm' is 'BARNSTORM'.
Can you help me to learn more?
(Other definitions for barnstorm that I've seen before include "get a quick round in!" , "performing" .)